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Pope Nicholas V
Pope Nicholas V
Pope Nicholas V
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Papal styles of
Pope Nicholas V
Reference styleHis Holiness
Spoken styleYour Holiness
Religious styleHoly Father
Posthumous styleNone

Pope Nicholas V (Latin: Nicolaus V; Italian: Niccolò V; 15 November 1397 – 24 March 1455),[1] born Tommaso Parentucelli, was head of the Catholic Church and ruler of the Papal States from 6 March 1447 until his death in March 1455.[2] Pope Eugene IV made him a cardinal in 1446 after successful trips to Italy and Germany, and when Eugene died the next year, Parentucelli was elected in his place. He took his name Nicholas in memory of his obligations to Niccolò Albergati. He remains the most recent pope to take the pontifical name "Nicholas".

The pontificate of Nicholas saw the fall of Constantinople to the Ottoman Turks and the end of the Hundred Years' War. He responded by calling a crusade against the Ottomans, which never materialized. By the Concordat of Vienna he secured the recognition of papal rights over bishoprics and benefices. He also brought about the submission of the last of the antipopes, Felix V, and the dissolution of the Synod of Basel. A key figure in the Roman Renaissance, Nicholas sought to make Rome the home of literature and art. He strengthened fortifications, restored aqueducts, and rebuilt many churches. He ordered design plans for what would eventually be the Basilica of St. Peter.

Early life

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Tommaso Parentucelli was born in Sarzana, an important town in Lunigiana, to the physician Bartolomeo Parentucelli and wife Andreola Bosi of Fivizzano.[3] The Lunigiana region had long been fought over by competing Tuscan, Ligurian and Milanese forces. Three years before Parentucelli's birth, the town was captured from the Florentines by the Genoese Republic. His father died while he was young. Parentucelli later became a tutor, in Florence, to the families of the Strozzi and Albizzi, where he met the leading humanist scholars.[4]

Parentucelli studied at Bologna and Florence, gaining a degree in theology in 1422.[5] Bishop Niccolò Albergati was so awestruck with his capabilities that he took him into his service and gave him the chance to pursue his studies further by sending him on a tour through Germany, France and England.[6] He was able to collect books, for which he had an intellectual's passion, wherever he went. Some of them survive with his marginal annotations.[4]

Parentucelli attended the Council of Florence[7] and in 1444, when his patron died, he was appointed Bishop of Bologna in his place.[8] Civic disorders at Bologna were prolonged, so Pope Eugene IV soon named him as one of the legates sent to Frankfurt. He was to assist in negotiating an understanding between the Papal States and the Holy Roman Empire, regarding undercutting or at least containing the reforming decrees of the Council of Basel (1431–1439).[6]

Papacy

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Parentucelli's successful diplomacy gained him the reward, on his return to Rome, of the title Cardinal-Priest of Santa Susanna in December 1446. At the papal conclave of 1447 he was elected pope in succession to Eugene IV on 6 March. He took the name Nicholas in honour of his early benefactor, Niccolò Albergati.[4]

Papal bulla of Nicholas V

In only eight years, his pontificate delivered important achievements in the political, scientific, and literary history of the world. Politically, he needed to repair relationships which had broken down in the pontificate of Eugene IV. He called the congress which produced the Treaty of Lodi, secured peace with Charles VII of France, and concluded the Concordat of Vienna or Aschaffenburg (17 February 1448) with the German King, Frederick III,[4] by which the decrees of the Council of Basel against papal annates and reservations were abrogated so far as Germany was concerned. In the following year he secured a still greater tactical triumph with the resignation of the Antipope Felix V on 7 April and his own recognition by the rump of the Council of Basel that assembled at Lausanne.[6]

In 1450, Nicholas held a Jubilee at Rome,[4] and the offerings of the numerous pilgrims who thronged to Rome gave him the means of furthering the cause of culture in Italy, which he had so much at heart. In March 1452 he crowned Frederick III as Holy Roman Emperor in St. Peter's, in what was the last imperial coronation held in Rome.[6]

Within the city of Rome, Nicholas introduced the fresh spirit of the Renaissance both intellectually and architecturally. His plans were of embellishing the city with new monuments worthy of the capital of the Christian world.[4] It was in recognition of this commitment to building that Leon Battista Alberti dedicated to Nicholas V his treatise De re aedificatoria.[9]

He is the last pope to date to take the pontifical name "Nicholas".

Rebuilding Rome

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His first care was practical, to reinforce the city's fortifications,[10] cleaning and even paving some main streets and restoring the water supply. The end of ancient Rome is sometimes dated from the destruction of its magnificent array of aqueducts by 6th-century invaders. In the Middle Ages Romans depended on wells and cisterns for water, and the poor dipped their water from the yellow Tiber. The Aqua Virgo aqueduct, originally constructed by Agrippa, was restored by Nicholas and emptied into a simple basin that Alberti designed, the predecessor of the Trevi Fountain.[11]

He continued restoration of the major Roman basilicas, but also of many other Roman churches including Sant' Apostoli, Sant' Eusebio, San Lorenzo fuori le Mura, Santa Maria in Trastevere, Santa Prassede, San Salvatore, Santo Stefano Rotondo, San Teodoro, and especially San Celso.[12] He rebuilt the Ponte Sant' Angelo which had collapsed in 1450, and supported the redevelopment of the surrounding area as a prestigious business and residential district.[13]

Arts patron

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Fresco in the Niccoline Chapel depicting Pope Sixtus II with the physical features of Pope Nicholas V

Nicholas V's major focus was on establishing the Vatican as the official residence of the Papacy, replacing the Lateran Palace. He added a substantial new wing including a private chapel to the Vatican, and – according to Giannozzo Manetti, biographer of Nicholas – planned substantial changes to the Borgo district. He also laid up 2,522 cartloads of marble from the dilapidated Colosseum for use in the later constructions.[14]

The Pope's contemporaries criticised his lavish expenditure on building: Manetti drew parallels with the wealth and expenditure of Solomon, suggesting that Papal wealth was acceptable so long as it was expended to the glory of God and the good of the Church.[15] The decoration of the Niccoline Chapel by Fra Angelico demonstrated this message through its depictions of St Lawrence (martyred for refusing to hand to the Roman state the wealth of the Church) and St Stephen.[16]

Under the generous patronage of Nicholas, humanism made rapid strides as well. The new humanist learning had been hitherto looked on with suspicion in Rome, a possible source of schism and heresy from an unhealthy interest in paganism. For Nicholas, humanism became a tool for the cultural aggrandizement of the Christian capital, and he sent emissaries to the East to attract Greek scholars after the fall of Constantinople.[17] The pope also employed Lorenzo Valla to translate Greek histories,[18] pagan as well as Christian, into Latin. This industry, coming just before the dawn of printing, contributed enormously to the sudden expansion of the intellectual horizon.

Nicholas, with assistance from Enoch of Ascoli and Giovanni Tortelli, founded a library of five thousand volumes, including manuscripts rescued from the Turks after the fall of Constantinople.[19] The Pope himself was a man of vast erudition, and his friend Aeneas Silvius Piccolomini, later Pope Pius II, said of him that "what he does not know is outside the range of human knowledge". A lifelong bibliophile, he treasured books: while the Vatican library was still being designed and planned, he kept the rarest books near to him in his bedroom, with the others in a room nearby. Often thinking fondly of his former work as a librarian, he once remarked, "I had more happiness in a day than now in a whole year."[20]

He was compelled, however, to add that the lustre of his pontificate would be forever dulled by the fall of Constantinople, which the Turks took in 1453. Unsuccessful in a campaign to unite Christian powers to come to the aid of Constantinople, just before that great citadel was conquered, Nicholas had ordered 10 papal ships to sail with ships from Genoa, Venice and Naples to defend the capital of the Eastern Roman Empire. However, the ancient capital fell before the ships could offer any aid. The Pope bitterly felt this catastrophe as a double blow to Christendom and to Greek letters. "It is a second death", wrote Aeneas Silvius, "to Homer and Plato."[6]

Nicholas preached a crusade and endeavoured to reconcile the mutual animosities of the Italian states, but without much success.[6]

In undertaking these works, Nicholas was moved "to strengthen the weak faith of the populace by the greatness of that which it sees". The Roman populace, however, appreciated neither his motives nor their results, and in 1452 a formidable conspiracy for the overthrow of the papal government under the leadership of Stefano Porcari was discovered and crushed. This revelation of disaffection, together with the fall of Constantinople in 1453, darkened the last years of Pope Nicholas. "As Thomas of Sarzana", he said, "I had more happiness in a day than now in a whole year".[6]

Slavery

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See also: Slavery in Portugal

In late spring of 1452 Byzantine Emperor Constantine XI wrote to Pope Nicholas for help against the impending siege by Ottoman Sultan Mehmed II. Nicholas issued the bull Dum Diversas (18 June 1452) authorizing King Afonso V of Portugal to "attack, conquer, and subjugate Saracens, pagans and other enemies of Christ wherever they may be found". Issued less than a year before the fall of Constantinople, the bull may have been intended to begin another crusade against the Ottoman Empire.[21]

Portuguese possessions in Morocco (1415–1769)

Ownership of the Canary Islands continued to be a source of dispute between Spain and Portugal and Nicholas was asked to settle the matter, ultimately in favor of the Portuguese.[22] The geographical area of the concession given in the bull is not explicit, but historian Richard Raiswell finds that it clearly refers to the recently discovered lands along the coast of West Africa.[23] Portuguese ventures were intended to compete with the Muslim trans-Sahara caravans, which played a key role in the highly profitable Muslim slave trade and also held a monopoly on West African gold and ivory.[24]

The Portuguese claimed territorial rights along the African coast by virtue of having invested time and treasure in discovering it; the Castilian claim was based on their being the heirs of the Visigoths. In 1454 a fleet of caravels from Seville and Cádiz traded along the African coast and upon their return, were intercepted by a Portuguese squadron. Enrique IV of Castile threatened war. Afonso V appealed to the Pope for moral support of Portugal's right to a monopoly of trade in lands she discovered.[25]

The papal bull Romanus Pontifex, issued on 8 January 1455, endorsed Portuguese possession of Cuerta (which they already held), and the exclusive right to trade, navigation, and fishing in the discovered lands, and reaffirmed the previous Dum Diversas.[26] It granted permission to Afonso and his heirs to "... make purchases and sales of any things and goods, and victuals whatsoever, as it may seem fit, with any Saracens and infidels in said regions; ... provided they be not iron instruments, wood used for construction, cordage, ships, and any kinds of armor."[27]

The bull conferred exclusive trading rights to the Portuguese between Morocco and the Indies with the rights to conquer and convert the inhabitants.[28] A significant concession given by Nicholas in a brief issued to King Alfonso in 1454 extended the rights granted to existing territories to all those that might be taken in the future.[29] Consistent with these broad aims, it allowed the Portuguese "to invade, search out, capture, vanquish, and subdue all Saracens and pagans whatsoever, and other enemies of Christ wheresoever placed, and the kingdoms, dukedoms, principalities, dominions, possessions, and all movable and immovable goods whatsoever held and possessed by them and to reduce their persons to perpetual slavery". However, together with a second reference to some who have already been enslaved, this has been used to suggest that Nicholas sanctioned the purchase of black slaves from "the infidel":[30] "... many Guineamen and other negroes, taken by force, and some by barter of unprohibited articles, or by other lawful contract of purchase, have been ... converted to the Catholic faith, and it is hoped, by the help of divine mercy, that if such progress be continued with them, either those peoples will be converted to the faith or at least the souls of many of them will be gained for Christ."[27]

It is on this basis that it has been argued that collectively the two bulls issued by Nicholas gave the Portuguese the rights to acquire slaves along the African coast by force or trade.[26] By dealing with local African chieftains and Muslim slave traders, the Portuguese sought to become key European players in the lucrative slave trade. The concessions given were confirmed by bulls issued by Pope Callixtus III ( Inter Caetera quae in 1456), which recognized Portugal's trade rights in territories it had discovered along the West African coast. This confirmation of Romanus Pontifex also gave the Portuguese the military Order of Christ under Henry the Navigator. Other papal bulls would go on later to confirm territorial possessions and acquisitions of Spanish and Portugal such as Sixtus IV (Aeterni Regis in 1481), Pope Alexander VI: Eximiae devotionis (3 May 1493), Inter Caetera (4 May 1493) and Dudum Siquidem (23 September 1493).[31]

See also

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References

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Further reading

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Revisions and contributorsEdit on WikipediaRead on Wikipedia

Pope Nicholas V

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Tommaso Parentucelli (15 November 1397 – 24 March 1455), who reigned as Pope Nicholas V from his election on 6 March 1447 until his death, was the 208th pope of the and sovereign of the . Born in in the to a physician father, Parentucelli rose through ranks via scholarly pursuits in and before his rapid elevation to the papacy following the death of Eugene IV. A leading figure in the early , he championed by establishing the in 1448 through the consolidation of approximately 350 Greek, Latin, and Hebrew manuscripts, aiming to create a repository "for the common convenience of the learned" that integrated pagan classical texts with Christian doctrine. Nicholas V's patronage extended to artists, scholars, and architects, including commissions for translations of ancient works and early efforts to restore Rome's infrastructure, such as fortifying the city's walls and planning the reconstruction of . His diplomatic achievements included reconciling the papacy with various European powers, notably through the in 1448 with Frederick III, whom he crowned in 1452, thereby stabilizing papal influence in . However, his pontificate drew lasting controversy for issuing the bulls (18 June 1452) and (8 January 1455), which granted Portugal's King Afonso V rights to invade, conquer, and reduce to "perpetual servitude" Saracens, pagans, and other non-Christians in and beyond, providing ecclesiastical sanction for the enslavement of infidels in the context of crusading expansion and laying a doctrinal foundation for the emerging . These pronouncements reflected a causal prioritization of and territorial dominion over individual liberties, privileging empirical geopolitical necessities of the era amid Ottoman threats, though they have been critiqued in modern for enabling racialized exploitation.

Early Life and Formation

Birth and Family Background

Tommaso Parentucelli, who later became Pope Nicholas V, was born on 15 November 1397 in , a coastal town in then part of the . His father, Bartolomeo Parentucelli, worked as a physician in the town, providing the family with a modest but respectable status typical of provincial medical practitioners in late medieval . His mother, Andreola Bosi, originated from the nearby inland town of Fivizzano, reflecting local inter-community ties common in the region. The Parentucelli household embodied humble origins, with no indications of noble lineage or significant wealth, a background that influenced Parentucelli's early dependence on ecclesiastical and scholarly patronage after his father's premature death left the family in financial straits.

Education and Intellectual Development

Tommaso Parentucelli commenced his higher education at the around 1417, focusing on logic, , and the seven liberal arts. By 1420, despite early financial constraints following his father's death in 1401, he had advanced sufficiently to teach at the university. Poverty compelled him to suspend his studies temporarily, leading him to as a tutor for prominent families, such as the Strozzi and , where he gained exposure to humanist circles and refined his pedagogical skills. Resuming his academic pursuits in by 1419, Parentucelli completed a in in 1422, the same year he was ordained a by Niccolò Albergati of , who recognized his intellectual promise and employed him as secretary and administrator. Under Albergati's , which lasted over two decades, Parentucelli immersed himself in patristic and scholastic , began systematically collecting manuscripts, and accompanied his mentor on diplomatic missions that broadened his erudition in and secular affairs. This period marked the foundation of his lifelong scholarly bent, blending rigorous theological training with an emerging appreciation for , evidenced by his later advocacy for Greek-Latin translations and library curation.

Ecclesiastical Career and Rise

Early Clerical Roles and Scholarship

Following the completion of his in theology at the in 1422, Tommaso Parentucelli was ordained to the priesthood and entered the service of Niccolò Albergati, the Bishop of . Albergati, a Carthusian elevated to the cardinalate in 1426, employed Parentucelli as his factotum, entrusting him with administrative responsibilities that spanned over two decades until Albergati's death in 1443. In this capacity, Parentucelli managed ecclesiastical affairs, including oversight of construction projects in , reflecting Albergati's interests in architecture and monastic reform. Parentucelli accompanied Albergati on several legatine missions, including travels to France, where he gained practical experience in papal diplomacy and negotiation amid the ongoing Western Schism's aftermath. He also served as a canon in the Bologna Cathedral chapter, handling canonical duties and correspondence that honed his organizational skills. These roles positioned him as a reliable clerical administrator, though Bologna's turbulent politics—marked by conflicts between Guelphs and Ghibellines—limited his influence until Albergati's later cardinalate years. Parentucelli's scholarly inclinations manifested early in his clerical career through an avid pursuit of manuscripts and self-directed study, amassing a personal library annotated in his own hand with notes on theological and classical texts. His encyclopedic knowledge of Patristic and Scholastic theology earned recognition during the Council of Florence (1438–1439), where he contributed to discussions on union with the Eastern Church, demonstrating proficiency in Greek patristics acquired through tutoring contacts in Florence and independent reading. This intellectual rigor, combined with his diplomatic acumen, distinguished him among contemporaries, foreshadowing his later patronage of humanism, though his early scholarship remained practical and ecclesiastical rather than prolific in original writings.

Elevation to Bishop and Cardinal

Tommaso Parentucelli's ecclesiastical ascent accelerated in the mid-1440s through his to . In 1444, amid political instability in following the death of its previous , Niccolò Albergati, Parentucelli was appointed of on 27 November by Eugene IV, tasked with restoring order and papal influence in the fractious . His tenure there, marked by skillful negotiation to quell factional violence and secure alliances, demonstrated administrative acumen that impressed the papacy. Parentucelli's broader diplomatic efforts further elevated his status. Dispatched on missions across and to the , he notably mediated at the 1446 Diet of , where he helped reconcile German electors and princes, advancing papal interests in the region amid the ongoing Conciliar crisis and imperial politics. This success prompted Eugene IV to elevate him to the cardinalate on 16 December 1446, appointing him Cardinal-Priest of Santa Susanna in . The rapid promotion, occurring just two years after his episcopal consecration, reflected recognition of his intellectual rigor and loyalty, positioning him among the curia's inner circle shortly before Eugene's death.

Election and Early Pontificate

Papal Election in 1447

Pope Eugene IV died on February 23, 1447, in , creating a vacancy in the amid ongoing challenges from the Conciliar movement and the antipope Felix V elected by the Council of Basel. The conclave to elect his successor convened on March 4, 1447, in the Basilica of Santa Maria sopra Minerva, with 16 cardinals participating, reflecting the reduced college following deaths and the recent consistory of December 16, 1446, that had elevated Tommaso Parentucelli, Bishop of , to the cardinalate. The conclave proceeded over three days, marked by initial divisions among Italian, French, and other factions, but Parentucelli emerged as a compromise candidate due to his scholarly reputation, diplomatic skills honed in , and lack of strong enmities. On March 6, 1447, during the first scrutiny of the third , he received the required two-thirds majority of 12 votes, leading to his unanimous acceptance after brief hesitation over his humble origins and recent cardinalatial elevation. Parentucelli chose the regnal name Nicholas V in homage to Niccolò Albergati, the of who had been his early patron and mentor in humanistic studies. His election signaled a shift toward intellectual renewal and stabilization, as he was proclaimed the same day and crowned on March 19, 1447, in .

Initial Reforms and Diplomatic Stabilization

Upon his on March 6, 1447, and subsequent on March 19, Nicholas V prioritized administrative measures to restore order in and the amid post-schism instability. He delegated magisterial and tax-collection authority to four elected Roman citizens, granting limited self-government while retaining ultimate papal oversight, which helped quell local unrest. Concurrently, he initiated repairs to the city's fortifications and walls to deter revolts and invasions, and maintained a standing force of paid papal troops rather than relying on condottieri whose plundering had depleted resources. These steps stabilized the Apostolic Treasury by curbing fiscal abuses and enhancing the papacy's credibility among Italian powers. Diplomatically, Nicholas moved swiftly to reclaim alienated territories and forge alliances in . On March 24, 1447, he reconciled with King , recognizing his claim to the Kingdom of in exchange for allegiance and military support, thereby ending a protracted conflict inherited from his predecessor. By July 1447, submitted to papal authority, followed by Bologna's formal reconciliation on August 24, 1447, where the city retained its republican governance under nominal papal suzerainty, averting further fragmentation of the . These concessions preserved the status quo while bolstering papal influence in . To resolve the lingering schism posed by the Council of Basel and its antipope Felix V, Nicholas employed negotiation over confrontation. In July 1447, Poland pledged obedience, securing 10,000 ducats and 90 benefices as inducements, which isolated 's adherents. On January 18, 1449, he issued a revoking penalties against former Basel supporters to encourage submission. This culminated in Felix V's on April 7, 1449, at the Council of , followed by the synod's formal dissolution by April 25, effectively ending conciliarist challenges to . Extending efforts to , Nicholas concluded the Concordat of Vienna on February 17, 1448—ratified March 19—which restored papal rights over bishoprics and benefices in the , nullifying Basel's influence there and gaining endorsements from electors. Embassies to France, , , and yielded oaths of obedience, often via targeted concessions, further consolidating unity. These initiatives, blending pragmatic with revocable grants, stabilized the pontificate's external relations without ceding core authority.

Cultural and Intellectual Contributions

Patronage of Humanism and Learning

Pope Nicholas V, himself a scholar with a deep interest in classical antiquity, actively supported humanist endeavors by inviting prominent intellectuals to Rome and providing them financial patronage. He welcomed figures such as the humanist Lorenzo Valla, whom he appointed as apostolic notary, and Poggio Bracciolini, to whom he extended support despite their occasional deviations from orthodox views. This patronage transformed the papal court into a hub for scholarly activity, where humanists were employed in copying and translating ancient texts, fostering a revival of classical learning aligned with Christian intellectual traditions. A cornerstone of his efforts was the establishment of the on April 30, 1451, initially comprising approximately 350 Greek, Latin, and Hebrew codices inherited from predecessors, with the explicit purpose of serving "the common convenience of the learned" (pro communi doctorum virorum commodo). Nicholas expanded this collection aggressively, amassing around 5,000 volumes at a cost exceeding 40,000 scudi by acquiring manuscripts from European monasteries and palaces, thereby preserving classical works amid threats like the Ottoman advances in the East. This initiative reflected his commitment to as a means of enriching scholarship rather than mere secular revival. Nicholas commissioned an ambitious project to translate the entirety of into Latin, introducing key historians such as , , , and to Western readers for the first time. Notable among these was the first complete Latin version of ' History of the Peloponnesian War, undertaken by Valla starting in 1448 and completed in 1452 at Nicholas's behest, following a suggestion from Cardinal . Though the overarching translation program remained unfinished due to his death in 1455, it marked a pivotal shift in humanist methodology, emphasizing philological accuracy and direct engagement with original sources to advance learning.

Founding and Expansion of the Vatican Library

Pope Nicholas V, elected in 1447, initiated the systematic collection of manuscripts to form the nucleus of what would become the , drawing from approximately 350 Latin, Greek, and Hebrew codices inherited from his predecessors and augmented by his personal holdings. On April 30, 1451, he issued a papal brief pro communi doctorum virorum commodo, establishing the library for the common use of scholars and aiming to position as a center of and classical learning. This act reflected his commitment to intellectual patronage, as he employed scribes and translators to copy ancient texts, including works by and , often acquired from Byzantine refugees fleeing Ottoman advances. Under Nicholas V's direction, the collection expanded rapidly through targeted acquisitions, reaching around 1,200 volumes by the time of his death in 1455, a quadrupling from the initial holdings. He dispatched agents across and the to purchase or copy manuscripts, prioritizing Greek and Hebrew texts to preserve endangered classical and patristic knowledge amid the threat of Islamic conquests in the East. Key humanists such as Giovanni Tortelli and worked under his auspices, producing critical editions and translations that enriched the library's scholarly value; for instance, Tortelli's Orthographia, a , was dedicated to the pope as part of these efforts. This growth was not merely accumulative but strategically aimed at fostering doctrinal and philosophical inquiry, with Nicholas viewing the library as a repository for reconciling pagan with . While Sixtus IV formalized the library's structure with the 1475 bull Ad decorem militantis ecclesiae, providing permanent funding and appointing Bartolomeo Platina as , Nicholas V's foundational work supplied the core collection and institutional intent, without which later expansions would lack substance. His initiatives laid the groundwork for the library's role as a of Western , emphasizing for qualified researchers over proprietary papal use.

Urban and Architectural Initiatives

Rebuilding Efforts in Rome

Nicholas V prioritized the physical restoration of , which had deteriorated due to abandonment during the (1309–1377) and ensuing political turmoil, initiating projects to repair essential infrastructure and revive the city's ancient monumental character. His efforts focused on practical necessities like walls, aqueducts, bridges, and roads, alongside symbolic enhancements to papal and civic structures, employing engineers such as Bernardo Rossellino, summoned to in 1451 as ingegnere di palazzo. These initiatives reflected a broader humanistic vision of renovatio urbis, aiming to restore 's imperial splendor without fully realizing grander plans before his death in 1455. A primary concern was the failing water supply; Nicholas sponsored the restoration of the Aqua Virgo aqueduct, the first such papal intervention since the eighth century, enabling reliable fountains and reducing reliance on contaminated sources. He also directed repairs to defensive walls and urban thoroughfares, stabilizing bridges like the and clearing debris from key arteries to facilitate pilgrimage and trade. At the Vatican, Nicholas addressed the decaying Constantinian St. Peter's Basilica, commissioning Rossellino to reinforce its structure and design a new tribuna extension over the tomb of St. Peter, incorporating classical motifs; though preparatory work began, full reconstruction awaited successors like Julius II. These projects, funded partly through papal revenues and indulgences, laid foundational plans for the Leonine City's expansion but were curtailed by Nicholas's limited eight-year pontificate and competing diplomatic demands.

Symbolic Projects and Their Rationale

Pope Nicholas V initiated a comprehensive program of urban renewal in Rome, known as renovatio urbis, focusing on the restoration of key infrastructure and monumental sites to revive the city's ancient grandeur. Among the specific projects, he resumed the repair of the ancient city walls, originally started under his predecessor Eugene IV, and fortified bridges such as the Milvian Bridge to improve security and access. He also oversaw restorations of major basilicas, including Santa Maria Maggiore, San Lorenzo fuori le mura, and San Paolo fuori le Mura, alongside remodeling the Palazzo dei Conservatori with added loggias to enhance civic spaces. In the Vatican area, known as the Borgo Leonino, Nicholas planned extensive rebuilding, including repairs to the nave of Old St. Peter's Basilica, a new tribuna extension, and improvements to the Vatican Palace and the Hospital of Santo Spirito, envisioning a grand piazza with the relocation of an ancient obelisk to its center. These initiatives were partially funded by revenues from the 1450 Jubilee Year, which drew massive pilgrim influxes and provided resources for amid Rome's post-medieval decay. However, many projects remained incomplete at Nicholas's death in March 1455, with subsequent popes selectively continuing elements, such as wall repairs, while halting broader demolitions. The rationale for these symbolic projects stemmed from Nicholas's humanist vision to reestablish as the —the head of the world—and the spiritual center of , linking papal authority to the city's imperial past. Influenced by scholarship, the efforts aimed to assert continuity between and Christian , countering centuries of neglect following the and reinforcing the pope's temporal sovereignty over the Eternal City. By prioritizing the Vatican as the "home of the spiritual ruler" and preserving apostolic shrines like St. Peter's, Nicholas sought to symbolize renewal and the papacy's role as guardian of Western civilization's heritage, preparing for its enduring function as a global pilgrimage site. This approach reflected a causal prioritization of monumental to bolster legitimacy and cultural prestige, rather than mere utilitarian fixes, though practical benefits like improved sanitation and defense were incidental.

Diplomatic and Political Engagements

Concordat of Vienna and German Relations

The Concordat of Vienna, concluded on February 17, 1448, between papal representatives and envoys of Frederick III, marked a pivotal resolution to longstanding tensions over appointments in German territories following the Council of Basel's disruptions. Negotiated amid the decline of conciliarist influence, the agreement affirmed papal authority to provision bishoprics and benefices directly, countering earlier imperial or electoral claims to reservations or elections that had proliferated under the precedents in other realms. Emperor Frederick III explicitly recognized the pope's spiritual supremacy while securing acknowledgment of his temporal oversight in secular matters, thereby stabilizing the dual structure of authority without conceding to full conciliar reforms. Pope Nicholas V confirmed the concordat via bull on March 19, 1448, integrating it into broader efforts to dismantle antipapal factions. This pact effectively eroded residual support for antipope Felix V among German princes and estates, who had previously aligned with Basel's assertions of conciliar superiority over papal monarchy. By prioritizing direct papal provisions over local electoral customs in most cases—reserving only limited imperial vetoes in disputed elections—the concordat curtailed the decentralized control that had allowed secular rulers to influence church revenues and offices, fostering a more centralized curial oversight akin to pre-conciliar norms. German diets, including one at Aschaffenburg, mandated universal acceptance of Nicholas V's legitimacy prior to the signing, signaling a pragmatic shift driven by the exhaustion of schismatic strife and the empire's internal divisions. Relations with the under Frederick III, the first Habsburg emperor, thus transitioned from wary diplomacy to alliance-building, as the concordat's mutual recognitions facilitated joint opposition to Ottoman advances and internal heresies. V's prior experience as a legate in under IV had laid groundwork for these overtures, emphasizing pragmatic concessions to imperial prestige—such as promises of crown support—over rigid enforcement of universal papal reservations. The emperor's 1452 visit to , culminating in his coronation by V on March 19 at —the last such imperial rite in the Eternal City—symbolized this rapport, with the pope anointing Frederick and his consort Eleanor of Portugal amid vows of fidelity to papal directives on church governance. Yet, the concordat's endurance until 1806 reflected not unqualified papal triumph but a balanced equilibrium, as German estates retained leverage through non-compliance in remote sees, underscoring the causal limits of curial reach amid feudal fragmentation.

Negotiations with European Monarchs

Upon ascending the papal throne, Nicholas V prioritized stabilizing relations with the French crown amid ongoing tensions from the (1438), which had curtailed papal fiscal and appointive prerogatives in . In 1451, he dispatched Cardinal Guillaume d'Estouteville as legate to the court of King VII to negotiate reforms, assert papal authority over ecclesiastical abuses, and broker a cessation of hostilities in the between and . D'Estouteville's mission also laid preliminary groundwork for the rehabilitation of , whose 1431 condemnation Charles VII sought to nullify as a of his realm's legitimacy, though full proceedings advanced only after Nicholas's death under Pope Calixtus III. These overtures reflected Nicholas's pragmatic approach to reconciling Gallican assertions with , yielding partial goodwill but no revocation of the Sanction during his pontificate. Nicholas extended diplomatic feelers to under King Henry VI, dispatching Cardinal as legate in the early 1450s to preach the indulgence, promote reforms, and foster amity amid the war's attrition; however, Cusa's journey halted short of due to logistical and political barriers. Concurrently, d'Estouteville's French legation included mandates to mediate Anglo-French peace, underscoring Nicholas's broader aim to redirect European energies from inter-Christian conflict toward a crusade against the Ottoman threat, though these efforts bore limited fruit before the war's effective conclusion in 1453. In southern Europe, Nicholas navigated relations with , king of since his 1442 conquest, by tacitly recognizing his sovereignty to avert renewed Angevin claims supported by prior papal backing under Eugene IV. This accommodation facilitated Alfonso's provision of naval support for papal initiatives, including vessels for the defense of in 1452–1453, while Nicholas mediated intermittently in Alfonso's eastern alliances, such as those with Albanian leader against Ottoman incursions. By late 1454, amid the Treaty of Lodi's formation—an alliance stabilizing Italian states—Nicholas sought Alfonso's adhesion to counter Venetian expansion, dispatching envoys like Cardinal Domenico Capranica in early 1455 to secure his commitment, thereby integrating Neapolitan power into papal-led equilibria. These negotiations preserved papal influence over the Kingdom of without direct confrontation, prioritizing continental harmony. Further north, Nicholas cultivated ties with the by crowning Frederick III as emperor in on March 19, 1452—the first such coronation there since 1312—symbolizing restored papal-imperial concord following the Concordat of Vienna (1448). This ceremony, negotiated through prior legatine , reinforced Frederick's and papal prerogatives in ecclesiastical appointments across German territories, averting schismatic risks from conciliarist remnants. Overall, these engagements with monarchs underscored Nicholas's realist : leveraging legates and ceremonies to reclaim authority eroded by the Great Schism and , while subordinating local disputes to the existential imperative of Christian unity against eastern perils.

Response to Eastern Threats

Efforts Toward East-West Church Union

Pope Nicholas V inherited the decrees of the (1438–1445), which had nominally reunited the with under his predecessor Eugenius IV through the bull Laetentur Caeli issued on July 6, 1439, affirming , the clause, and other doctrinal points. Upon his election on March 6, 1447, Nicholas promptly confirmed these union provisions, viewing them as binding and essential for ecclesiastical unity, though implementation faced widespread resistance from Eastern clergy and laity who regarded the concessions as coerced amid Byzantine military desperation against Ottoman expansion. In response to pleas for aid from Byzantine Emperor , who ascended in 1449 amid escalating Turkish threats, Nicholas conditioned Western military support on the full enforcement of the Florentine decrees, including public liturgical recognition of Roman primacy. In a 1451 letter to Byzantine authorities, he explicitly stated that no assistance would be forthcoming without complete adherence to the union's terms, reflecting his prioritization of doctrinal fidelity over immediate geopolitical relief. This stance aligned with longstanding papal policy linking ecumenical solidarity to submission to the See of Peter, yet it alienated many Greeks who prioritized survival against over theological reconciliation. To advance the union practically, Nicholas dispatched Cardinal Isidore of Kiev—himself a signatory of the Florentine acts and a fervent unionist—as papal legate to Constantinople in 1452, tasking him with ratifying the reunion amid the city's siege preparations and coordinating any defensive reinforcements. Isidore arrived shortly before the Ottoman assault, celebrated a unionist liturgy on May 12, 1453, proclaiming the pope's name in the diptychs, but encountered fierce opposition from Orthodox hardliners like Metropolitan Gregory III of Chalcedon, who rejected the legates' authority. The fall of Constantinople on May 29, 1453, dashed these initiatives; Isidore escaped and reported the catastrophe to Nicholas via letter from Crete on July 6, 1453, underscoring the union's fragility amid Eastern rejectionism and insufficient Latin commitment. Nicholas's efforts thus centered on diplomatic insistence and legatine missions rather than convening new councils, yielding nominal papal endorsements but no substantive Eastern compliance, as grassroots Orthodox sentiment—fueled by perceptions of Latin betrayal during prior —overrode imperial endorsements. Post-1453, the pope mourned the loss as a divine judgment partly attributable to schismatic intransigence, issuing calls for a crusade that implicitly tied recovery to renewed union fidelity, though these bore little fruit.

Reaction to the Fall of Constantinople in 1453

The fall of to Ottoman forces under Sultan on May 29, 1453, prompted Pope Nicholas V to issue a formal condemnation and call to arms four months later. On September 30, 1453, he promulgated the Etsi ecclesia Christi, framing the Ottoman conquest as the culmination of centuries-long Islamic aggression against and urging Christian princes to mount a unified crusade for recovery of the city. The bull invoked traditional crusade theology, promising indulgences and spiritual rewards to participants, while emphasizing the existential threat to and the need for immediate military action. Nicholas V's appeals extended to the courts of , marking the first such post-conquest, yet elicited no substantive commitments from monarchs preoccupied with internal conflicts and the recent resolution of the . Privately, the pope expressed profound anxiety that the event would tarnish his legacy, viewing the inaction of as a personal and institutional failure amid his prior diplomatic overtures toward Byzantine union. Despite these efforts, the crusade failed to materialize, reflecting broader European disunity and reluctance to engage Ottoman power following the decisive siege that claimed an estimated 4,000 defenders and resulted in the subjugation of the city's 50,000 inhabitants. This outcome underscored the limits of papal authority in mobilizing secular rulers against existential threats from the East.

Explorations, Crusades, and Bulls on Non-Christians

Authorization of Portuguese Ventures

Pope Nicholas V supported Portuguese maritime expansion by issuing papal bulls that provided ecclesiastical justification for voyages along the West African coast, amid efforts to bypass Muslim-controlled trade routes and advance Christian interests. These authorizations responded to initiatives led by Portugal's Infante Henry, who sought papal endorsement to legitimize discoveries and deter rival Castilian incursions. On 18 June 1452, Nicholas V promulgated , addressed to King , granting full permission to invade, search out, capture, and subdue Saracens, pagans, and other unbelievers encountered during expeditions. The bull explicitly authorized the reduction of such peoples to perpetual servitude, framing these actions as a just means to propagate the Catholic faith and counter Islamic expansion. As Portuguese navigators advanced beyond —previously considered impassable due to currents and legends—further papal confirmation followed. The bull , issued on 8 January 1455, ratified Portugal's prior discoveries and awarded exclusive rights to navigation, trade, and conquest of territories south of and the , extending toward the Indies but excluding already Christian-held lands. It affirmed the enslavement provisions of while emphasizing monopolies on commerce in gold, spices, and slaves to fund and missionary endeavors. These bulls effectively delineated spheres of influence, shielding Portuguese ventures from European competitors and aligning them with the Church's crusade ideology against non-Christians, thereby catalyzing the Age of Discovery's early phase under royal patronage.

Dum Diversas and Romanus Pontifex: Context and Provisions

Dum Diversas, issued by Pope Nicholas V on 18 June 1452 to King Afonso V of Portugal, responded to Portuguese requests for authorization amid ongoing maritime expeditions along the West African coast, initiated under Prince Henry the Navigator since the capture of Ceuta in 1415. These ventures aimed to bypass Muslim-controlled trans-Saharan trade routes for gold and spices, establish fortified trading posts (feitorias), and combat Islamic expansion by propagating Christianity through conquest. The bull built on prior papal grants, such as those by Eugenius IV in 1434 and 1441, which had sanctioned Portuguese navigation beyond Cape Bojador and permitted enslavement of captured Moors as spoils of war. The provisions of explicitly empowered Afonso V and his successors to "invade, search out, capture, vanquish, and subdue all Saracens and pagans whatsoever, and other enemies of Christ wherever placed," reducing their persons to "perpetual " and seizing their goods and lands. This authorization framed such actions as meritorious for the faith, invoking the pope's supreme authority over infidels and aligning with medieval traditions that permitted enslavement in just wars against non-Christians as an alternative to extermination. The bull did not specify geographic limits but focused on perpetual servitude as a means to deprive unbelievers of and fund further crusading efforts. Romanus Pontifex, promulgated on 8 January 1455, served as an extension and confirmation of Dum Diversas, prompted by reports of Portuguese successes, including the establishment of outposts like Arguim (1445) and the procurement of enslaved Africans for labor in Portugal and Atlantic islands. Addressed to Afonso V, it addressed rival claims from Castile by affirming Portugal's exclusive rights, amid broader European jockeying for Atlantic domains under papal arbitration. The document praised the king's zeal against Muslims and detailed ecclesiastical benefits from the slave trade, such as funding for cathedrals from tithes on imported captives. Key provisions in Romanus Pontifex granted Portugal a monopoly on navigation, conquest, and commerce south of Cape Bojador and Cape Nun, prohibiting interference by other Christian powers under pain of excommunication. It reiterated the right to reduce non-Christians—specifically Saracens, pagans, and other unbelievers—to "perpetual servitude," portraying this as divinely sanctioned to propagate the Gospel and counter Islam's spread. The bull established the Portuguese crown as patron over newly converted subjects and missionary orders in these territories, vesting tithes and spoils in the king while subjecting the regions to the pope's ultimate dominion. Unlike Dum Diversas, it emphasized economic exploitation, noting how enslaved Africans' labor yielded gold, ivory, and pepper, thereby enriching Christendom.

Medieval Just War Doctrine and Enslavement Norms

In medieval Christian thought, the doctrine of just war (bellum iustum), initially articulated by St. Augustine of Hippo in works such as City of God (c. 413–426 CE), required legitimate authority, just cause (typically defense against aggression or recovery of stolen goods), and right intention (peace rather than vengeance). This framework was systematized in Gratian's Decretum (c. 1140), which compiled canon law to distinguish lawful wars from private feuds, emphasizing proportionality and discrimination between combatants and non-combatants. Wars against non-Christians, including Saracens and pagans, were frequently classified as just if they countered expansionist threats to Christendom, such as Islamic incursions into Europe or interference with missionary efforts, drawing on precedents like the Reconquista in Iberia. Enslavement norms within this doctrine permitted the reduction of enemy captives to servitude as an alternative to execution, viewing it as a merciful that subordinated the vanquished and deterred future . Rooted in Roman legal traditions (e.g., ius gentium allowing enslavement of peregrini in conquest) and biblical justifications (e.g., Deuteronomy 20:10–15 on subjugating distant cities), this practice was endorsed by theologians like , who in (II-II, q. 40, a. 1; c. 1270) affirmed just wars while accepting slavery for prisoners as a form of restitution or containment of sin, distinguishing it from but permitting it against those whose enmity posed ongoing peril. Gratian's Decretum (C. 23, q. 1–4) explicitly allowed Christians to hold non-Christian slaves acquired through just war, prohibiting only if it endangered faith, and this was applied asymmetrically to infidels, who were seen as lacking full rights under due to their rejection of . Canonists like Hostiensis (c. 1250) extended this to perpetual servitude for Saracens captured in defensive campaigns, rationalizing it as a restraint on their capacity for violence against the faithful. Pope Nicholas V invoked these norms in (18 June 1452), authorizing Portugal's King Afonso V to prosecute a just war against Saracens and pagans in who impeded Christian and , explicitly permitting the perpetual enslavement of as spoils to finance further expeditions and weaken enemy forces. This aligned with Iberian precedents, where enslavement in just wars against Granada's had been routine since the 13th century, serving both punitive and economic functions amid mutual raids— enslaved over 1 million from 1530–1780 alone, per Ottoman records, prompting reciprocal measures. (8 January 1455) reaffirmed these provisions, framing enslavement as consonant with hierarchies and just war ethics, whereby subjugation of "barbarians" obstructing evangelization mirrored historical captivities like those of the . Critics within the era, such as some Franciscan theologians, questioned indiscriminate application but did not reject the underlying doctrine, which prioritized empirical threats—e.g., Portuguese defenses against Moroccan corsairs—over abstract .

Death and Immediate Aftermath

Final Years and Health Decline

In the aftermath of the execution of Stefano Porcaro for conspiracy against the pontiff in January 1453, Nicholas V experienced profound despondency, which compounded the emotional toll of the Ottoman capture of on May 29, 1453, and the failure to mobilize a effective crusade response. This period marked a turning point, as the pope's ambitious projects for Church renewal and cultural patronage began to wane amid mounting personal and geopolitical frustrations. Nicholas V's physical health deteriorated markedly after 1453, afflicted by recurrent and severe attacks of , accompanied by fevers and other unspecified ailments that signaled his impending mortality despite his relatively young age of 57. These conditions, likely exacerbated by the stresses of his pontificate, rendered him increasingly frail and confined him from active governance in his final months. The pope succumbed to complications from on the night of March 24–25, 1455, in , delivering a final address to the reflecting on his tenure before his passing. He was interred in beside his predecessor Eugene IV, though his tomb was later relocated to the crypt under Paul V.

Succession and Short-Term Impact

Pope Nicholas V died on 24 March 1455 in at the age of 57, succumbing to complications from a prolonged illness that included and kidney stones. The sede vacante period lasted until a conclave of 15 cardinals assembled in the Vatican on 4 April 1455, amid factions favoring Italian candidates like Cardinal Pietro Barbo (future Paul II) and others supporting prospected reformists. On 8 April 1455, after four days of negotiations, the cardinals elected Cardinal Alfonso de Borja, Bishop of and a under previous popes, who assumed the name Callixtus III; at 76 years old, he became the first non-Italian pope since the , reflecting Spain's rising influence through alliances forged during the Western Schism's resolution. Callixtus III's immediate policies emphasized continuity in papal administration while pivoting toward militant responses to Ottoman expansion, issuing indulgences and bulls on 15 June 1455 to rally for a crusade against the Turks, who had captured two years prior. This built on Nicholas V's prior calls for aid but with greater urgency, including the of European princes who failed to contribute forces or funds, though logistical failures and princely reluctance limited tangible military outcomes in the short term. Domestically, he initiated minor curial reforms, such as curbing in benefices, and canonized St. Vincent Ferrer in 1455 to bolster Iberian ties, but his nepotistic appointments—elevating nephews like Luis Juan del Milà to cardinal—drew early criticism for prioritizing family over merit, foreshadowing Borgia influence in the Church. The succession ensured institutional stability without schismatic threats, as the remained cohesive post-conclave, but it marked a temporary dilution of Nicholas V's humanistic priorities, with resources redirected from expansions toward crusade preparations that yielded no decisive victories before Callixtus's death in 1458. European monarchs, preoccupied with internal conflicts like the Wars of the Roses, offered perfunctory support, underscoring the papacy's waning coercive power over secular rulers in the immediate aftermath.

Historical Assessments

Achievements in Renaissance Foundations

Pope Nicholas V initiated the formal establishment of the Vatican Apostolic Library in 1451 by consolidating around 350 Greek, Latin, and Hebrew codices inherited from prior papal collections into a dedicated repository. In a brief dated April 30, 1451, he designated the library "pro communi doctorum virorum commodo," explicitly for the shared use of scholars, thereby positioning it as a foundational institution for preserving and accessing classical and patristic texts amid the revival of learning. This effort built on his personal scholarly background as a humanist trained in classical languages, reflecting a deliberate papal commitment to intellectual over mere administration. Under Nicholas's direct sponsorship, the papal court emerged as a primary center for humanist scholarship, employing translators to render key Greek works into Latin and thereby bridge Byzantine and Western intellectual traditions. Scholars such as George of Trebizond and Giovanni Tortelli produced Latin versions of Thucydides' History, Strabo's Geography, and Homer's Iliad, with Nicholas personally funding these projects to enrich Latin Europe's access to antiquity. He also amassed manuscripts through agents in the East, including acquisitions from fleeing Byzantine scholars prior to the 1453 fall of Constantinople, which augmented the library's holdings and accelerated the influx of Greek learning into Italy. This patronage not only prioritized philological accuracy—emphasizing ad verbum fidelity over medieval paraphrase styles—but also integrated pagan classical texts with Christian doctrine, fostering a theological humanism that subsequent popes expanded. Nicholas V's initiatives extended to architectural and artistic foundations that symbolized Rome's cultural renewal, commissioning designs for St. Peter's Basilica's reconstruction and urban fortifications while attracting artisans in goldsmithing, tapestry, and manuscript illumination to the Vatican. Though his death in 1455 curtailed many projects, these efforts established precedents for papal investment in as vehicles for evangelization and prestige, influencing the High Renaissance's material and intellectual synthesis in the Eternal City. His thus marked the papacy's pivot toward active sponsorship of empirical and aesthetic revival, grounded in the causal role of preserved texts in driving European intellectual progress.

Criticisms and Revisionist Interpretations

Criticisms of Pope Nicholas V prominently focus on his papal bulls Dum Diversas, issued on June 18, 1452, and Romanus Pontifex, issued on January 8, 1455, which empowered Portugal's King Afonso V to invade, conquer, and perpetually enslave Saracens, pagans, and other non-Christians resisting Christian expansion in Africa and beyond. These provisions explicitly granted rights to seize goods, lands, and persons, framing such actions as meritorious for propagating the faith, and are credited by many historians with legitimizing the Portuguese initiation of large-scale African slave exports, numbering over 150,000 by the early 1500s. Secular and progressive academics often portray Nicholas V as complicit in inaugurating racialized chattel slavery and the Doctrine of Discovery, arguing the bulls institutionalized a hierarchy subordinating non-Europeans to perpetual servitude absent just cause, thus contradicting core Christian anthropology despite rhetorical appeals to evangelization. Such critiques, prevalent in institutions with documented ideological biases favoring narratives of Western culpability, tend to retroactively apply modern human rights standards while minimizing contemporaneous Islamic slave practices, which annually trafficked comparable numbers from sub-Saharan Africa. Revisionist analyses, primarily from Catholic scholars and canonists, reframe these bulls as narrowly tailored to authorize defensive and retributive warfare against Muslim aggressors—such as Barbary corsairs raiding European coasts—rather than blanket endorsements of racial slavery. They emphasize that Dum Diversas targeted "enemies of the faith" impeding Portuguese navigation, aligning with Aquinas-derived just war theory permitting enslavement of belligerents as an alternative to execution, a norm shared across medieval Christendom, the Ottoman Empire, and African kingdoms where war captives supplied domestic and military labor. These interpreters note the bulls' silence on enslaving peaceful converts or non-combatants, and argue subsequent papal interventions, like Paul III's Sublimis Deus in 1537, clarified prohibitions on unjust subjugation, indicating Nicholas V's framework was not an immutable sanction for transatlantic abuses but a pragmatic response to 15th-century geopolitical threats, including the Ottoman conquest of Constantinople in 1453. Empirical evidence supports this by showing Portuguese slave raids initially focused on Muslim-held territories, with broader application emerging from crown policies rather than papal directive.

References

  1. https://www.vatican.va/content/vatican/en/holy-father/niccolo-v.html
  2. http://www.vatican.va/content/john-paul-ii/en/letters/1998/documents/hf_jp-ii_let_19980902_nicolau-v.html
  3. https://www.vaticanlibrary.va/en/the-library/history-of-BAV.html
  4. https://www.historyofinformation.com/detail.php?id=287
  5. https://cardinals.fiu.edu/bios1446.htm
  6. https://onlinelibrary.wiley.com/doi/abs/10.1002/9781444351071.wbeghm020
  7. https://www.acton.org/religion-liberty/volume-34-number-1/catholicism-and-slavery-setting-record-straight
  8. https://www.newadvent.org/cathen/11058a.htm
  9. https://www.papalartifacts.com/portfolio-item/pope-nicholas-v/
  10. https://www.catholic-hierarchy.org/bishop/bparen.html
  11. https://www.catholic.com/encyclopedia/pope-nicholas-v
  12. https://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/nicholas-v-1397-1455-pope
  13. https://www.catholic-hierarchy.org/diocese/dbolo.html
  14. https://www.encyclopedia.com/history/encyclopedias-almanacs-transcripts-and-maps/nicholas-pope-v
  15. https://www.britannica.com/biography/Nicholas-V-pope
  16. https://www.ebsco.com/research-starters/biography/nicholas-v
  17. https://www.newadvent.org/cathen/05601a.htm
  18. http://cardinals.fiu.edu/conclave-xv.htm
  19. https://cardinals.fiu.edu/election-nicholasv.htm
  20. https://www.catholic-hierarchy.org/event/c1447.html
  21. http://www.csun.edu/~hcfll004/SV1447.html
  22. https://www.historytoday.com/archive/nicholas-v-elected-pope-rome
  23. https://www.cristoraul.org/ENGLISH/readinghall/THIRDMILLENNIUMLIBRARY/History-of-the-popes/PASTOR/B3_C2-FIRST-YEARS-OF-THE-REIGN-OF-POPE-NICHOLAS-V.html
  24. https://www.britannica.com/event/Council-of-Basel
  25. https://www.historyofinformation.com/detail.php?id=2876
  26. https://www.loc.gov/exhibits/vatican/vatican.html
  27. https://www.loc.gov/exhibits/vatican/intro.html
  28. https://www.catholicculture.org/culture/library/view.cfm?recnum=8455
  29. https://web.sas.upenn.edu/hist230-rome/09-rebuilding-rome-rebuilding-the-church/
  30. https://www.wga.hu/bio/r/rosselin/bernardo/biograph.html
  31. https://archiv.ub.uni-heidelberg.de/artdok/6975/1/Frommel_Papal_policy_1988.pdf
  32. https://waters.iath.virginia.edu/karmon.html
  33. https://resources.saylor.org/wwwresources/archived/site/wp-content/uploads/2012/10/HIST302-9.3.3-Rebuilding-St.-Peters-Basilica-FINAL1.pdf
  34. https://online.ucpress.edu/jsah/article/72/2/166/60245/Nicholas-V-s-Tribuna-for-Old-St-Peter-s-in-Rome-as
  35. https://www.academia.edu/958609/Below_the_Angel_an_urbanistic_project_in_the_Rome_of_Pope_Nicholas_V
  36. https://historyweblog.com/2021/02/nicholas-v-rebuilds-rome/
  37. https://www.sgira.org/pope_nicholas_5.htm
  38. https://www.catholic365.com/article/38448/pope-nicholas-v-the-modern-church-begins.html
  39. https://www.ecatholic2000.com/cathopedia/vol4/volfour204.shtml
  40. https://www.cambridge.org/core/journals/church-history/article/pope-eugenius-iv-and-the-concordat-of-vienna-1448-an-interpretation/375E12ECD046B8878211190740789199
  41. https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/nicholas-v-pope
  42. https://www.jeanne-darc.info/trial-of-nullification/
  43. https://iris.uniroma1.it/retrieve/1b43f8df-20a2-4b83-bad1-9919ae4ce434/Plebani_Postcards-from-Renaissance-Rome_2023.pdf
  44. https://www.ewtn.com/catholicism/library/ecumenical-council-of-florence-1438-1445-1461
  45. https://academic.oup.com/book/11898/chapter/161080829
  46. https://www.newadvent.org/cathen/08188a.htm
  47. https://x.com/RomeInTheEast/status/1737881171315356062
  48. https://www.catholicculture.org/culture/library/view.cfm?id=1355
  49. https://slowhistory.substack.com/p/1453-09-reactions-to-the-fall
  50. https://www.degruyterbrill.com/document/doi/10.3138/9781487532628-005/html
  51. http://www.greece.org/poseidon/work/occupation/constantinople.html
  52. https://christianhistoryinstitute.org/dailyquote/7/12
  53. https://www.saintsophiadc.org/may-29-1453-the-day-constantinople-fell/
  54. https://wishcny.squarespace.com/s/Papal-Bulls.pdf
  55. https://www.papalencyclicals.net/nichol05/romanus-pontifex.htm
  56. https://ldhi.library.cofc.edu/exhibits/show/african_laborers_for_a_new_emp/pope_nicolas_v_and_the_portugu
  57. https://sites.smith.edu/itsjusthistory/papal-bulls-dum-diversas-romanus-pontifex/
  58. https://globalhealth.emory.edu/_includes/documents/unsettling-truths_chapter-1.pdf
  59. https://caid.ca/Bull_Romanus_Pontifex_1455.pdf
  60. https://cas.loyno.edu/sites/chn.loyno.edu/files/GAFFNEY_JustWar.pdf
  61. https://www.researchgate.net/publication/289744613_Slavery_in_medieval_and_early_modern_Iberia
  62. https://www.historytoday.com/justifying-slavery
  63. https://pdfs.semanticscholar.org/147c/ee29f67ac3965326112367791227e39c75e2.pdf
  64. https://cardinals.fiu.edu/election-calixtusiii.htm
  65. https://www.catholic-hierarchy.org/event/c1455.html
  66. https://www.newadvent.org/cathen/03187a.htm
  67. https://www.cenl.org/library/the-vatican-library-biblioteca-apostolica-vaticana/
  68. https://brill.com/display/book/9789004680012/BP000019.xml
  69. https://www.oxfordbibliographies.com/abstract/document/obo-9780195399301/obo-9780195399301-0437.xml
  70. https://www.metmuseum.org/essays/the-papacy-during-the-renaissance
  71. https://www.courthouselibrary.ca/how-we-can-help/our-legal-knowledge-base/doctrine-discovery
  72. https://www.ncronline.org/disastrous-doctrine-had-papal-roots
  73. https://www.ewtn.com/catholicism/library/popes-and-slavery-setting-the-record-straight-1119
  74. https://www.catholic.com/audio/caf/the-catholic-church-and-slavery
  75. https://www.americamagazine.org/faith/2023/02/15/catholic-church-slavery-244703/
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