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John Peckham
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Key Information

Ordination history of
John Peckham
History
Episcopal consecration
Consecrated byPope Nicholas III
Date19 February 1279
PlaceRome, Papal States
Episcopal succession
Bishops consecrated by John Peckham as principal consecrator
John Darlington, O.P.27 August 1279
Oliver Sutton19 May 1280
Richard Gravesend11 August 1280
Thomas Beck6 October 1280
Richard Swinfield7 March 1283
Thomas Ingaldesthorp26 September 1283
Walter Scammell22 October 1284
John Kirkby22 September 1286
Henry Brandeston1 June 1287
Gilbert of Saint Leofard5 September 1288
Ralph Walpole20 March 1289
William de La Corner8 May 1289
William of Louth1 October 1290
Thomas of Wouldham, O.S.B.6 January 1292
Bishop Thomas Button16 March 1292
Nicolas Longespee16 March 1292

John Peckham[a] (c. 1230 – 8 December 1292) was a Franciscan friar and Archbishop of Canterbury in the years 1279–1292.

Peckham studied at the University of Paris under Bonaventure, where he later taught theology and became known as a conservative opponent of Thomas Aquinas, especially regarding the nature of the soul. Peckham also studied optics and astronomy - his studies in those subjects were particularly influenced by Roger Bacon and Alhazen.[1] Around 1270, Peckham returned to England, where he taught at the University of Oxford, and was elected the Franciscans' provincial minister of England in 1275. After a brief stint in Rome, he was appointed Archbishop of Canterbury in 1279. His time as archbishop was marked by efforts to improve discipline in the clergy as well as reorganize the estates of his see. He served King Edward I of England in Wales.

As archbishop, Peckham oversaw attempts to close down Jewish synagogues, punish relapsing Jews from "returning to their vomit", and associating with Christians. He also opposed the loaning of money at interest and criticised Queen Eleanor of Castile for purchasing and abusing these loans to dispossess nobles of their property.[b]

Before and during his time as archbishop, Peckham wrote several works on optics, philosophy, and theology, as well as writing hymns. Numerous manuscripts of his works survive. On his death, his body was buried in Canterbury Cathedral, but his heart was given to the Franciscans for burial.

Early life

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Peckham came from a humble family, possibly from Patcham in East Sussex.[2] He was born about 1230 and was educated at Lewes Priory.[3] About 1250, he joined the Franciscan order at Oxford. He then went to the University of Paris, where he studied under Bonaventure and became regent master, or official lecturer, in theology.[4][5] While at Paris, he wrote a Commentary on Lamentations, which sets out two possible sermons.[6]

For years Peckham taught at Paris, where he was in contact with many of the leading scholars of his time, including Thomas Aquinas.[4] He famously debated Thomas on at least two occasions during 1269 and 1270, during which Peckham defended the conservative theological position, and Thomas put forth his views on the soul.[7] The Thomist doctrine of the unity of form was condemned after these debates.[8] His theological works later were used by his pupil Roger Marston who in turn inspired Duns Scotus.[3]

Peckham also studied other fields, however; and was guided by Robert Grosseteste and Roger Bacon's views on the value of experimental science.[9] Where Peckham met Bacon is not known, but it would have been at either Paris or Oxford. Bacon's influence can be seen in Peckham's works on optics (the Perspectiva communis) and astronomy.[3] In the field of optics, Peckham was influenced by Euclid, Pseudo-Euclid, Aristotle, Augustine, al-Kindi, Avicenna, Alhazen, Robert Grosseteste, and Roger Bacon. Of these, historian David Lindberg argues, "Alhazen is by far the most significant, and Peckham could speak of his intention to 'follow in the footsteps' of the author".[1]

Return to England

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A manuscript of Roger Bacon's work on optics, which influenced Peckham's own works

Reorganization of the archdiocese

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About 1270, he returned to England to teach at Oxford, and was elected provincial minister of the Franciscans in England in 1275.[10] He did not long remain in that post, being summoned to Rome as lector sacri palatii, or theological lecturer at the papal palace.[11] It is likely that he composed his Expositio super Regulam Fratrum Minorum, a work that included information on preaching, a subject that Peckham felt was of great importance.[12] In 1279 he was appointed Archbishop of Canterbury by Pope Nicholas III who had prohibited the election of Robert Burnell, Edward I's preferred candidate. He was provided (appointed by the pope to the see) on 25 January 1279 and consecrated on 19 February 1279.[13]

Peckham laid stress on discipline, which often resulted in conflict with his clergy. His first episcopal act was calling a council at Reading in July 1279 to implement ecclesiastical reform, but Peckham's specifying that a copy of Magna Carta should be hung in all cathedral and collegiate churches offended the king as an unnecessary intrusion into political affairs. Another ruling was on non-residence of clergy in their livings. The only exception Peckham was prepared to make on non-residence was if the clerk needed to go abroad to study.[14] At the Parliament of Winchester in 1279, the archbishop compromised and Parliament invalidated any regulation of the council dealing with royal policies or power. The copies of Magna Carta were taken down.[15] One reason the archbishop may have backed down was that he was in debt to the Italian banking family of the Riccardi, who also were bankers to Edward and the pope, and Peckham was under threat of excommunication from the pope unless he repaid the loans.[16]

However, Peckham worked hard to reorganise the estates of the diocese, and held an inquiry in 1283 through 1285 into the revenues of the see. He set up administrative structures in the manors that divided them into seven administrative groups.[17] Peckham, though, was almost continually in debt, and because he was a Franciscan, he had no personal property to help with his living expenses. He had inherited the diocesan debts that his predecessor had allowed to accumulate, and never managed to clear them.[18]

Relations with the Welsh

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Notwithstanding his other actions, Peckham's relations with the king were generally good, and Edward sent him on a diplomatic mission to Llywelyn ap Gruffudd in Wales. In 1282 he attempted to mediate between the Welsh and King Edward, but given that Edward would not budge on the main issues, it was a hopeless mission.[19] In the end, Peckham excommunicated some of the Welsh who were resisting Edward. In service to King Edward, Peckham formed a low opinion of the Welsh people and laws.[19][20] Peckham visited the Welsh dioceses as part of his tour of all his subordinate dioceses. While there, Peckham criticised the Welsh clergy for their unchaste lives, conspicuous consumption, and heavy drinking. He also found the Welsh clergy to be uneducated, although he did order a Welsh-speaking suffragan bishop to be appointed to help with pastoral duties in the diocese of Coventry and Lichfield.[21] Peckham also criticised the Welsh people as a whole, contrasting their pastoral economy with the farming-based economy of England, and finding the Welsh to be lazy and idle.[22]

As part of his diplomatic duties, Peckham wrote to Llywelyn, and in those letters the archbishop continued his criticisms of the Welsh people, this time condemning their laws as contrary to both the Old and New Testament. Peckham was particularly offended that Welsh laws sought to get parties to homicides or other crimes to settle their differences rather than the process of English law which condemned the criminal.[23]

Peckham also had problems with his subordinate Thomas Bek, who was Bishop of St David's in Wales. Bek tried to revive a scheme to make St David's independent from Canterbury, and to elevate it to metropolitan status. This had originally been put forth by Gerald of Wales around 1200, but had been defeated by the actions of Hubert Walter, then the Archbishop of Canterbury. Bek did not manage even the four-year fight that Gerald had managed, for Peckham routed him quickly.[24]

Ecclesiastical matters

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Skirmishes with Edward over clerical privileges, royal power, Peckham's use of excommunication, and ecclesiastical taxation continued, but in October 1286, Edward issued a writ entitled Circumspecte Agatis which specified what types of cases the ecclesiastical courts could hear. These included moral issues, matrimonial issues, disputes about wills and testaments, the correction of sins, and slander and physical attacks on the clergy.[25]

Peckham was very strict in his interpretations of canon law. He felt that Welsh laws were illogical and conflicted with Biblical teachings.[26] He also mandated that the clerical tonsure worn by the clergy should not just include the top of the head, but also have the nape and over the ears shaved, which allowed the clergy to be easily distinguished from the laity. To help with this, the archbishop also forbade the clergy from wearing secular clothing, especially military garb.[27] He also forbade an effort by the Benedictine order in England to reform their monastic rule, to allow more time for study and for more education for the monks. Peckham's reason was that they were against custom, but he may also have had concerns that these reforms would have drawn recruits away from the Franciscans.[28]

At an ecclesiastical council held at Lambeth in 1281, Peckham ordered the clergy to instruct their congregations in doctrine at least four times a year. They were to explain and teach the Articles of Faith, the Ten Commandments, the Works of Mercy, the Seven Deadly Sins, the Seven Virtues and the Sacraments.[29] This command was issued as a canon, or law, of the council, and the group is known as the Lambeth Constitutions.[30] Even later these constitutions were collected as the Ignorantia sacerdotum.[29] The six doctrines comprised the minimum theological knowledge the archbishop considered necessary for the laity to know.[31] The constitutions, which were originally in Latin, were the basis and inspiration for pastoral and devotional works throughout the remainder of the Middle Ages, and were eventually translated into English in the 15th century.[30]

The crime of "Pluralism", i.e. one cleric holding two or more benefices, was one of Peckham's targets,[32] as were clerical absenteeism and laxity in the monastic life. His main method of fighting these was a system of visitation of his subordinate dioceses and religious houses, which he used with an unprecedented frequency. This often resulted in conflicts over whether or not the archbishop had jurisdiction to conduct these visits, but Peckham was also papal legate, which added a layer of complexity to the resulting disputes. The numerous legal cases that resulted from his visitation policy strengthened the archiepiscopal court at the expense of the lower courts.[33] Peckham also fought with Thomas de Cantilupe, Bishop of Hereford over the right to visit subordinate clergy. The quarrel involved an appeal over the jurisdiction of the archbishop, that Thomas sent to Rome in 1281, but Thomas died before the case could be decided.[34] Peckham also decreed that the clergy should preach to their flocks at least four times a year.[35]

Peckham often was in conflict with his subordinate bishops, mainly because of his efforts to reform them, but Peckham's own attitude and handling of his clergy contributed to the problem.[36] He once wrote to Roger de Meyland, the Bishop of Coventry and Lichfield "These things need your attention, but you have been absent so long that you seem not to care. We therefore order you, on receipt of this letter, to take up residence in your diocese, so that—even if you are not competent to redress spiritual evils—you may at least minister to the temporal needs of the poor."[37] The historian Richard Southern says that Peckham's disputes with his suffragan bishops were "conducted in an atmosphere of bitterness and perpetual ill-will",[38] which probably owed something to a "petulant strain in Peckham's character".[38] Peckham's conflicts started because his own ideals were those of a Franciscan, but most of his clergy were concerned with more mundane and materialistic affairs. These strains between the archbishop and his subordinates were intensified by clashes over ecclesiastical and secular authority, as well as Edward's great need for income.[39]

Measures against the Jews

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Like many other senior church leaders of the time, Peckham was hostile to the Jews, and regarded them as a danger to Christians. He pushed for greater segregation of Jews from Christians, alongside other contemporary church leaders, including Richard de Gravesend and Richard Swinefield, a number of whom had previously worked alongside Simon de Montfort. He sought to eradicate usury, and to stop Jewish converts from returning to Judaism.[40]

On hearing that the Jews of London were being allowed to build a new Synagogue, "to the confusion of the Christian religion" Peckham lobbied to stop it. On 19 August 1282, he ordered Richard Gravesend, Bishop of London, to compel the Jews of London, using every instrument of ecclesiastical censure, to destroy all their synagogues except one within a brief time period to be determined by the Bishop, claiming that the seven Synagogues they had were "cheating the Christian religion and causing scandal to many". In a second letter he congratulates the Bishop because the Judaica perfidia is being overcome by the bishop's attention and vigilance.[41] He confirmed however, that they should be allowed one Synagogue.[42]

In 1281 Peckham complained to Edward that converts to Christianity were backsliding, saying that those "who had converted from the Jewish perfidy to the Christian religion have returned to their vomit, the Jewish superstition". The following year he report 17 Jewish apostates, and in 1284 Edward gave him a writ for 13 of them to be arrested. They took refuge in the Tower of London, and Robert Burnell refused to take action for fear of endangering relations with the London Jewry; the 13 seem to have escaped punishment. This however was following a pattern set by Peckham's superiors; the Pope had been complaining for some time about similar instances.[43]

Peckham also clashed with Queen Eleanor stating to her that her use of loans from Jewish moneylenders to acquire lands was usury and a mortal sin.[44][43] He warned her servants that: "It is said that the illustrious lady queen, whom you serve, is occupying many manors, lands, and other possessions of nobles, and has made them her own property – lands which the Jews have extorted with usury from Christians under the protection of the royal court."[45][b]

In Easter 1285, the prelates, (senior church leaders) of the Province of Canterbury under Peckham's leadership drew up complaints to Edward, two of which were regarding what they saw as lax restrictions on Jews. They complained about converts lapsing back to Judaism, and called for a crack down on usury, which although banned since 1275 under the Statute of the Jewry, they believed was still being practiced, asking that "the Jews' fraud and malice be vigorously opposed". Edward replied that there was little that could be done,"because of their evilness". In response, the prelates expressed their shock and stated that the Crown was permitting Jews to "ensnare Christians through usurious contracts and to acquire the manors of nobles through the sink of usury". Edward was, they said, capable of stopping this "perversity", and advised that "through the threat of horrible punishments, which our lips will not name, he may strive to punish all userers".[46]

These concerns were reiterated directly to Peckham in a letter from the Pope Honorius IV, in November 1286, which Peckham and other church leaders used as guidance to make further calls against the Jews in the 1287 Synod of Exeter, again demanding the wearing of Jewish badges, banning Christians from working for Jews, from sharing meals with them, or using Jewish doctors. Jews were to banned from holding public office, or building new synagogues, and were to stay within their own homes on Good Friday.[47]

Death and legacy

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A number of manuscripts of Peckham's works on philosophy and biblical commentary remain extant. Queen Eleanor persuaded him to write for her a scholarly work in French, which was later described as "unfortunately rather a dull and uninspired little treatise."[48] His poem Philomena is considered one of the finest poems written in its time.[49]

Peckham died on 8 December 1292[13] at Mortlake and was buried in the north transept, or the Martyrdom, of Canterbury Cathedral.[3] His heart, however, was buried with the Franciscans under the high altar of their London church, Greyfriars, London.[50] His tomb still survives.[3] He founded a college at Wingham, Kent in 1286, probably a college of canons serving a church.[51]

Works

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Perspectiva, 1556

A number of his works have survived, and some have appeared in print in various times:

  • Perspectiva (in Latin). Paris: Gilles Gourbin. 1556.
  • Perspectiva (in Italian). Venezia: eredi Giovanni Varisco. 1593.
  • Perspectiva communis[52]
  • Collectarium Bibliae[3]
  • Registrum epistolarum[53][54]
  • Tractatus de paupertate[55][56]
  • Divinarum Sententiarum Librorum Biblie[12]
  • Summa de esse et essentia[3]
  • Quaestiones disputatae[3]
  • Quodlibeta[57]
  • Tractatus contra Kilwardby[56]
  • Expositio super Regulam Fratrum Minorum[12]
  • Tractatus de anima[58]
  • Tractatus de sphaera[59]
  • Canticum pauperis[3]
  • De aeternitate mundi[60]
  • Defensio fratrum mendicantium[56]

Peckham is the earliest Archbishop of Canterbury to have his registers, the principal records of archiepiscopal administration, held at Lambeth Palace Library.[61]

See also

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Notes

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Citations

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  1. ^ a b Lindberg, David C. (1976). Theories of Vision from Al-Kindi to Kepler. Chicago: University of Chicago Press. p. 117.
  2. ^ Moorman Church Life p. 159
  3. ^ a b c d e f g h i Thompson "Pecham, John" Oxford Dictionary of National Biography
  4. ^ a b Lawrence "Thirteenth Century" English Church and the Papacy pp. 146–147
  5. ^ Leff Paris and Oxford Universities p. 183
  6. ^ Douie "Archbishops Pecham's Sermons and Collations" Studies in Medieval History p. 269
  7. ^ Knowles Evolution of Medieval Thought p. 294
  8. ^ Leff Paris and Oxford Universities p. 228
  9. ^ Leff Paris and Oxford Universities p. 288
  10. ^ Greenway "Canterbury: Archbishops" Fasti Ecclesiae Anglicanae 1066-1300: Volume 2: Monastic Cathedrals (Northern and Southern Provinces)
  11. ^ Knowles Evolution of Medieval Thought p. 169
  12. ^ a b c Douie "Archbishops Pecham's Sermons and Collations" Studies in Medieval History p. 270
  13. ^ a b Fryde, et al. Handbook of British Chronology p. 233
  14. ^ Prestwich Edward I p. 250
  15. ^ Prestwich Edward I p. 251
  16. ^ Prestwich Edward I p. 252
  17. ^ DeBoulay Lordship of Canterbury p. 248
  18. ^ Moorman Church Life p. 173
  19. ^ a b Prestwich Edward I, p. 191–192
  20. ^ Prestwich Edward I, p. 200
  21. ^ Walker Medieval Wales p. 87
  22. ^ Given State and Society p. 94
  23. ^ Given State and Society p. 77
  24. ^ Walker Medieval Wales pp. 77–79
  25. ^ Prestwich Edward I, p. 257.
  26. ^ Prestwich Edward I p. 186
  27. ^ Moorman Church Life p. 149
  28. ^ Southern Western Society p. 236
  29. ^ a b Wallace Cambridge History of Medieval English Literature p. 396
  30. ^ a b Swanson Religion and Devotion pp. 59–60
  31. ^ Wallace Cambridge History of Medieval English Literature p. 548
  32. ^ Moorman Church Life pp. 220–221
  33. ^ Lawrence "Thirteenth Century" English Church & the Papacy p. 137
  34. ^ Lawrence "Thirteenth Century" English Church & the Papacy p. 128
  35. ^ Moorman Church Life pp. 80–81
  36. ^ Southern Western Society pp. 194–196
  37. ^ Quoted in Southern Western Society p. 194
  38. ^ a b Southern Western Society p. 194
  39. ^ Southern Western Society p. 211
  40. ^ Tolan England's Jews p. 170
  41. ^ Martin (ed.) Registrum epistolarum Fratris Johannis Peckham Vol. II p. 407, no. cccxii; p. 410, no cccxvi
  42. ^ Tolan England's Jews p. 172-173
  43. ^ a b Tolan England's Jews p. 173
  44. ^ Prestwich Edward I p. 125
  45. ^ Morris Great and Terrible King p. 225
  46. ^ Tolan England's Jews p. 174
  47. ^ Tolan England's Jews p. 177-178
  48. ^ Prestwich Edward I p. 123
  49. ^ Wallace Cambridge History of Medieval English Literature p. 362
  50. ^ Burton Monastic and Religious Orders p. 120
  51. ^ DeBoulay Lordship of Canterbury p. 127
  52. ^ Lindberg John Pecham and the Science of Optics
  53. ^ Martin, (ed). Registrum epistolarum Fratris Johannis Peckham
  54. ^ Mullins Texts and Calendars I section 6.77
  55. ^ Kingsford, et al. (eds.) Tractatus tres de paupertate
  56. ^ a b c Mullins Texts and Calendars I section 13.2
  57. ^ Delorme, (ed.) Johannis de Pecham Quodlibet Romanum
  58. ^ Melani, (ed.) Tractatus de anima Ioannis Pecham
  59. ^ MacLaren, (ed.) Critical Edition, with Commentary
  60. ^ Potter, (ed.) Questions Concerning the Eternity of the World
  61. ^ "Holdings of Lambeth Palace Library" Holdings of the Lambeth Palace Library

References

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Further reading

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
John Peckham (c. 1230 – 8 December 1292) was an English Franciscan , theologian, natural philosopher, and from 1279 to 1292, the only friar to hold that office. Born in Patcham, , he joined the Franciscan order around 1250, studied theology and philosophy at and under influences like , and lectured at Paris on the of . Peckham's intellectual contributions included defenses of Augustinian doctrines against emerging Aristotelian rationalism and significant work in , most notably his Perspectiva communis, a synthesis of optical theory from Alhazen, , and others that served as a standard medieval textbook on the subject. As archbishop, he pursued ecclesiastical reforms, enforced privileges, and clashed with King Edward I over jurisdictional rights, including attempts to regulate royal chapels and restrict Jewish religious practices amid broader tensions.

Early Life and Franciscan Formation

Origins and Entry into the Order

John Peckham was born around 1220–1225 in (now part of ), a location historically known as Pecham, which shared its name with places in and during the . His early education occurred under the Cluniac monks at , a Benedictine establishment in , where he received foundational schooling before pursuing advanced studies. Peckham entered the Franciscan Order around 1250, joining the Friars Minor at their convent during a period of expanding Franciscan influence in English universities. This decision aligned with the order's emphasis on , preaching, and intellectual pursuit, attracting scholars amid the movement's growth in the mid-13th century. Upon admission, he adopted the Franciscan habit and began theological training within the order's scholarly network, marking his transition from to life.

Education and Early Scholarship

John Peckham entered the Franciscan Order in the early 1250s, completing his novitiate at , a center of early Franciscan intellectual activity. Around 1260, he relocated to , where he pursued advanced theological studies, lecturing on Peter Lombard's and earning a in circa 1270. These institutions, particularly the Franciscan schools at and , fostered his development in , , and natural sciences amid the era's scholastic rigor. Peckham's early scholarship emphasized and metaphysics, building on predecessors like and . His seminal Perspectiva communis, composed between 1269 and 1279, synthesized Arabic and Latin optical traditions, including those of Alhazen and Witelo, into a systematic exposition that became a standard reference for centuries. This work demonstrated empirical observation alongside mathematical reasoning, covering refraction, reflection, and visual perception. Complementing this, Peckham authored theological treatises such as Summa de esse et essentia, addressing fundamental questions of being and essence within Aristotelian frameworks adapted to Christian doctrine. His outputs reflected the Franciscan commitment to integrating scientific inquiry with , though he occasionally critiqued overly speculative elements in contemporaries' work.

Ecclesiastical Ascendancy

Provincial Leadership Among

In 1275, was elected the ninth Minister Provincial of the Franciscan province of , succeeding Thomas de Bungay. This role placed him at the head of the English friars, responsible for overseeing the province's adherence to the Rule of St. Francis, managing internal discipline, and representing the order in ecclesiastical matters. During his tenure, which lasted until his appointment as in 1279, Peckham emphasized strict observance of Franciscan poverty and austerity amid growing tensions over the order's practices. In his first year, he attended the general chapter of the Franciscan order at , traveling the entire distance on foot to comply with the rule forbidding friars from riding, thereby exemplifying personal commitment to the order's foundational principles. At the chapter in 1276, 's scholarly reputation led to his selection as the first Franciscan Master of the Sacred Palace (Magister Sacri Palatii) at the papal court in , a position that involved theological instruction for the while he retained oversight of the English province. This dual responsibility highlighted his influence in bridging provincial administration with broader Franciscan governance, though specific provincial reforms under his leadership remain sparsely documented beyond his enforcement of disciplinary standards.

Appointment as Archbishop of Canterbury

Following the resignation of Robert Kilwardby as in 1278, the Canterbury chapter elected Robert Burnell, and chancellor to King Edward I, as his successor. Pope , however, quashed Burnell's election, citing concerns over his suitability and the influence of royal preferences in appointments. On 25 January 1279, nominated Peckham, then serving as lector sacri palatii in and recently appointed English Provincial of the , to the see, overriding the electoral process through papal provision. A confirming the appointment followed on 28 January 1279. Peckham, a distinguished scholar and ascetic friar, accepted reluctantly, reflecting his Franciscan commitment to humility over high office. Peckham was consecrated as archbishop by Nicholas III on 19 February 1279. Upon his return to , King Edward I, despite initially favoring Burnell, received him favorably and ordered the restoration of Canterbury's temporalities on 30 May 1279, which was duly executed. Peckham's enthronement occurred on 8 October 1279 at , in the presence of the king, marking the formal commencement of his tenure. This papal intervention underscored tensions between royal influence and curial authority over major English sees during the late .

Tenure as Archbishop (1279–1292)

Administrative Reforms and Reorganization

Upon assuming the archiepiscopate in 1279, Peckham convened a provincial at Reading on 29 July, where he enacted statutes endorsing the earlier constitutions of Cardinal Ottobon and prohibiting the holding of multiple benefices (pluralities) without dispensation, alongside measures to curb other clerical abuses such as non-residence and . These reforms aimed to enforce stricter discipline and align provincial practices with papal directives. In October 1281, he summoned the Council of , issuing the Constitutions of Lambeth, which emphasized combating priestly ignorance—deemed a root cause of lay error—by mandating that parish priests instruct parishioners at least four times annually on core doctrines including the Articles of Faith, , Seven Works of Mercy, Seven Deadly Sins, and sacraments, with penalties for non-compliance. The constitutions also regulated the custody of the and reinforced prohibitions on and clerical involvement in secular trades. Peckham undertook extensive provincial visitations to implement these decrees, inspecting dioceses such as Lichfield and Norwich in 1280, Welsh sees and Lincoln in 1284, and Worcester in 1285, during which he addressed monastic and parochial abuses, compelled exempt royal chapels to submit to archiepiscopal oversight, and renewed condemnations of philosophical errors at Oxford influenced by Averroes and aspects of Thomas Aquinas's teachings. In 1283, he convened a model convocation for the Province of Canterbury under royal summons, innovating by extending summonses beyond bishops and heads of exempt houses to include elected proctors from diocesan chapters (one per chapter) and lower clergy (two per diocese), granting them authority to deliberate and consent on taxation and other matters, thereby broadening clerical representation and establishing a precedent for future synodal assemblies. Financially strained by his predecessor Robert Kilwardby's alienation of revenues, Peckham pursued reorganization of the archiepiscopal estates through recovery of sold properties and rents, as documented in his registers—the earliest such comprehensive administrative records preserved at Library. In 1287, he completed the foundation of Wingham College, establishing a provost and six canons to enhance local provision and estate . These efforts, while yielding papal support against suffragan complaints of overreach, underscored Peckham's commitment to centralized authority and fiscal prudence amid resistance from exempt institutions and royal interests.

Conflicts with King Edward I

Peckham's assertion of broad ecclesiastical authority frequently clashed with Edward I's efforts to assert royal supremacy over clerical matters. In July 1279, shortly after his installation, Peckham convened the Council of Reading, where he issued constitutions excommunicating pluralists—clergy holding multiple benefices—and those obstructing church courts, measures intended to curb abuses but viewed by the king as overreach into secular jurisdiction. Edward responded by compelling Peckham to rescind key provisions during the Michaelmas Parliament of October 1279, highlighting the crown's intolerance for unchecked metropolitan powers. A central point of contention was Peckham's claim to legatine authority, granted by in 1279, which allowed him to act as in without royal approval; Edward regarded this as an infringement on prerogatives akin to those contested in the Becket affair over a century earlier. In 1280, Peckham summoned bishops to a at without the king's license, prompting Edward to challenge the legitimacy of such gatherings and temporarily imprison clerks who complied, reviving debates over whether Canterbury's legatus natus status extended to full legatine powers. These jurisdictional disputes persisted, with Peckham defending papal-derived authority against royal oversight, though in a milder form than historical precedents. Taxation of the further exacerbated tensions, as Peckham led resistance to 's demands for subsidies without prior papal consent, emphasizing clerical allegiance to . Throughout the early 1280s, in response to royal requests for funds amid campaigns in and , Peckham oversaw the articulation of clerical grievances, including complaints over arbitrary seizures and encroachments on church liberties, delaying grants until papal approval was secured. By 1286, as Edward prepared for potential continental conflict, the standoff intensified with threats of royal sequestration of church goods, but a compromise emerged in October, allowing limited clerical contributions under negotiated terms and averting outright confiscation. Peckham's liberal use of against royal officials and justices accused of usurping —such as in cases involving or tithes—drew sharp rebukes from , who viewed it as a weapon undermining secular courts. Despite these frictions, pragmatic accommodations prevailed by the late 1280s, with Peckham cooperating on Welsh reorganization and Edward moderating demands, reflecting a balance where neither fully prevailed but royal fiscal needs often tempered ecclesiastical intransigence.

Involvement in Welsh Affairs

Peckham engaged with Welsh ecclesiastical matters soon after his elevation to the archbishopric, addressing conflicts between , , and church authorities over territorial and jurisdictional rights. In October 1279, he dispatched a letter to protesting the prince's encroachments on church liberties, demonstrating familiarity with Welsh legal codes such as those attributed to , which Peckham critiqued for provisions he deemed incompatible with . In 1280, Peckham undertook a visitation to , where he brokered a temporary reconciliation between and the Bishop of Bangor, prompting the prince to accept a financial settlement that affirmed episcopal claims. This intervention reflected Peckham's broader aim to curb perceived abuses in the Welsh church, including clerical laxity and customary practices divergent from English norms, which he viewed as fostering disorder. Amid I's 1282–1283 campaign against Welsh resistance, Peckham served as a royal envoy and mediator, traveling to Garth Celyn in November 1282 to negotiate terms with . He proposed that the prince surrender sovereignty over in return for English estates and honors, though rejected the overture, citing ancestral rights and grievances against English aggression in correspondence with the archbishop. Following Llywelyn's death in combat on 11 1282 near Builth, Peckham relayed details to Edward I via letter, drawing on eyewitness accounts from Edmund Mortimer to describe the prince's fatal encounter with local forces, framing it as on Welsh defiance. Peckham's dispatches underscored his unfavorable assessment of Welsh and laws, which he characterized as primitive and obstructive to Christian order, particularly in matters of , retribution, and clerical . Post-conquest, Peckham advocated for the integration of the Welsh church into the English ecclesiastical framework, issuing decrees to elevate clerical discipline, suppress native legal customs conflicting with , and align Welsh sees more closely with Canterbury's oversight. His efforts, including synodal impositions during visitations, aimed to eradicate what he saw as barbarous elements in Welsh society, though they met resistance from entrenched local traditions.

Ecclesiastical Discipline and Synodal Decrees

Upon his appointment as in 1279, John Peckham convened the of Reading in July–August of that year to address prevalent clerical abuses, enacting statutes that prohibited incontinence among the , the holding of multiple benefices (pluralities), and non-residence in parishes. These measures aimed to enforce stricter moral and administrative standards, declaring benefices held without papal dispensation void except for the most recent acquisition, thereby compelling resignations to curb over-accumulation of ecclesiastical income. The council also reinforced earlier canons against clerical , directing archdeacons to proclaim them publicly to deter such violations. In October 1281, presided over a provincial at , promulgating the Lambeth Constitutions, a comprehensive set of 32 canons designed to elevate clerical discipline and pastoral efficacy across the province. Central to these was Canon 9, which mandated that parish priests instruct their flocks at least four times annually—on feast days of obligation—in the vernacular on core doctrines including the , , seven sacraments, , , and , under pain of for neglect; this provision, known as Ignorantia sacerdotum, sought to combat lay ignorance and priestly incompetence. Further disciplinary reforms targeted clerical comportment and ethics: Canon 20 forbade from adopting secular or military attire or concealing their , emphasizing distinct clerical identity; Canon 24 reiterated bans on pluralities, requiring resignation of excess benefices within six months; and Canon 6 restricted and confession-hearing to licensed , denying it to those in hardened sin or holding multiple cures. protocols were standardized in for notorious offenses, with for grave crimes like willful reserved to the , while Canon 10 ordered the regular publication of standing excommunications to maintain communal awareness of ecclesiastical censures. These decrees, drawing on prior councils like Lyons (1274), reinforced Peckham's commitment to purging corruption and fostering doctrinal fidelity, influencing English church governance for centuries.

Policies Toward Jews and Religious Converts

In 1282, Peckham issued orders to suppress and destroy Jewish synagogues within his jurisdiction as Archbishop of Canterbury, directing the Bishop of London to enforce the closures as a measure to curb Jewish religious practices and encourage conversion to Christianity. This action aligned with broader ecclesiastical efforts to limit Jewish communal autonomy, reflecting Peckham's Franciscan commitment to eradicating perceived spiritual threats, including usury often associated with Jewish lenders. At the Council of Reading in October 1281, Peckham decreed that Jews offending against ecclesiastical persons or property must submit to church courts, enforced by prohibitions on their trade and business until restitution was made, thereby extending clerical oversight over Jewish conduct. Peckham's policies toward religious converts emphasized preventing relapse among Jews who had baptized into , viewing reversion to —termed "returning to their vomit" in contemporary rhetoric—as warranting severe punishment. He initiated investigations into suspected relapsers in and elsewhere, aiming to enforce fidelity to conversion through isolation from Jewish communities and potential or secular penalties. These measures built on royal reforms, such as I's 1280 cessation of confiscating all property from newly converted , which Peckham supported to incentivize genuine adherence rather than opportunistic baptism. By 1287, at the Council of , Peckham reinforced anti-Jewish decrees, including synagogue demolitions, to further deter and integrate converts fully into Christian society.

Intellectual and Scientific Contributions

Pioneering Work in Optics

John Peckham's Perspectiva communis, composed circa 1277–1279 during his papal mission in Rome, represents a seminal synthesis of medieval optical knowledge. The treatise, structured in three books, systematically addresses the physiology of vision, the propagation of light rays, and phenomena such as refraction and reflection. Book I elucidates direct vision through geometric analysis of rays entering the eye, drawing on intromission theory where light from objects forms images on the retina. Peckham integrated insights from Alhazen's Book of Optics, Witelo's Perspectiva, and Roger Bacon's Opus majus, but prioritized clarity over exhaustive computation, rendering the material suitable for university curricula. A distinctive feature of Peckham's work lies in its practical orientation, including the first documented description of concave refracting surfaces—likely referring to lenses for magnifying or corrective purposes—which anticipated applications in spectacles. This innovation, absent in prior Latin texts, stemmed from empirical rather than pure , marking Peckham's departure from mere compilation. Additionally, he provided schematic illustrations of the , depicting the of optic nerves, which advanced anatomical understanding of . The Perspectiva communis achieved widespread dissemination, serving as the preeminent optics textbook in European universities from the early 14th century until the 17th, with its first printed edition appearing in Milan around 1482 and subsequent reprints, such as the 1556 Nuremberg edition, incorporating diagrams for enhanced comprehension. Peckham's emphasis on verifiable geometric proofs over speculative philosophy underscored a commitment to empirical rigor, influencing later figures like Johannes Kepler in refining ray optics. Despite relying on established authorities, the treatise's accessibility democratized optical science, bridging theoretical abstraction with observable phenomena.

Theological and Philosophical Treatises

Peckham's Summa de esse et essentia, composed around the 1270s, represents a key metaphysical defending the Franciscan of the plurality of substantial forms against the Thomistic view of unitary form in composite beings. In this work, he argues from Aristotelian principles augmented by Augustinian insights that multiple forms are necessary to account for the diverse grades of being in , thereby preserving the hierarchy of creation and as causal realities rather than mere epistemological aids. The treatise critiques Thomas Aquinas's synthesis of , emphasizing empirical distinctions in natural kinds observable in biological complexity, such as the successive informing of matter in human development from to rational . His Tractatus de anima (or Quaestiones tractantes de anima), likely written during his Parisian regency in the 1270s, consists of scholastic quaestiones exploring the soul's nature, immortality, and union with the body. Peckham posits the rational soul as a subsistent form directly created by God, rejecting Averroistic monopsychism while affirming its substantial independence post-mortem, grounded in scriptural exegesis and Aristotelian hylomorphism tempered by Bonaventurean voluntarism. This treatise addresses causal mechanisms of cognition, privileging divine light as the active intellect's source over purely natural abstraction, thus integrating philosophical reasoning with theological primacy of grace. Peckham's quodlibetal questions, preserved in selections from his and disputations circa 1270–1279, further elaborate metaphysical and ethical themes, including defenses of intuitive knowledge and critiques of excessive . These disputation records reveal his engagement with contemporary debates, such as the , where he upholds creation ex nihilo as empirically unverifiable but causally necessary via first-cause reasoning. A commentary on Aristotle's , extant in manuscript fragments, adapts pagan virtue theory to Christian , subordinating to . Theologically, Peckham's treatises emphasize scriptural literalism and ecclesial authority, as seen in his biblical commentaries like the Commentarium super Cantica Canticorum, which interpret through historical-grammatical rather than unchecked speculation. His philosophical output consistently subordinates reason to revelation, countering radical Aristotelian influences condemned in the 1277 Parisian propositions, while drawing on empirical observations to refute materialist reductions of spiritual realities. Over fifty attributed writings attest to his prolific synthesis, though manuscript variations underscore the need for critical editions to verify attributions amid medieval scribal practices.

Liturgical and Poetic Writings

Peckham's poetic output, deeply infused with Franciscan and affective devotion to Christ, includes the acclaimed Latin poem , which employs the nightingale as a for the soul's ecstatic contemplation of the Passion, structured according to the of the . Surviving in more than thirty manuscripts, Philomena—sometimes misattributed to —ranks among the finest thirteenth-century devotional verses, blending lyrical imagery with theological meditation on divine love and human redemption. An English appeared in 1924, underscoring its enduring appeal in medieval literary traditions. In liturgical composition, Peckham produced the Officium SS. Trinitatis, a rhythmic, poetic office dedicated to the Holy Trinity, intended for devotional or choral use within the Franciscan rite and broader ecclesiastical practice. This work, edited in the early twentieth century from medieval sources, exemplifies his integration of verse with liturgical reform, emphasizing Trinitarian doctrine through metrical prose suitable for antiphons and responsories. Peckham also authored hymns, such as the Eucharistic sequence beginning "Hail, true Victim, life and light," which extols Christ's sacrificial role in , reflecting his pastoral emphasis on piety. These compositions, preserved in liturgical manuscripts, served both contemplative and public worship, aligning with his broader efforts to elevate devotion amid thirteenth-century .

Death and Enduring Legacy

Final Years and Demise

In his final years as , Peckham's health deteriorated, exhibiting both bodily and mental weakness that impaired his ability to perform certain ecclesiastical duties. On 20 March 1292, due to this condition, the was licensed to confer on Peckham's behalf. Peckham died on 8 December 1292 at following a prolonged illness. His body was buried on 19 December 1292 in the north transept of , near the site of Thomas Becket's martyrdom, in a crafted from grey marble featuring an oak . His heart was interred separately with the Franciscan friars at Greyfriars in .

Influence on Church Governance and Scholarship

Peckham significantly shaped church governance during his archiepiscopate (1279–1292) by convening provincial synods to enforce disciplinary measures and reaffirm papal decrees. At the Lambeth synod of October 11, 1281, he confirmed the constitutions from the Council of Lyons (1274) and the London council of 1279, issuing 27 statutes that reiterated prior legislation on clerical morals, liturgical uniformity, and jurisdictional boundaries between church and state. These decrees aimed to curb abuses among and , mandating regular synodal participation and prohibiting unlicensed confessions, thereby centralizing archiepiscopal oversight over English dioceses. In 1284, Peckham renewed prohibitions at against friars hearing confessions without parish priests' permission, underscoring his commitment to balancing privileges with traditional parochial rights while defending ecclesiastical autonomy against royal encroachments. Peckham's scholarly output extended his governance influence by integrating rigorous intellectual standards into ecclesiastical education and debate. As a Franciscan trained in and , he produced over 50 treatises spanning , , , and , often synthesizing Augustinian traditions against emerging Aristotelian excesses, thereby preserving orthodox frameworks for church scholarship. His opposition to "new Aristotelianism," evident in quodlibetal disputations, reinforced theological conservatism amid university controversies, influencing Franciscan and papal curial thought. In , Peckham's Perspectiva communis (composed ca. 1277–1279) synthesized Greek, , and contemporary sources, becoming the preeminent from the early 14th to late 16th centuries and embedding experimental into liberal arts curricula at institutions like by 1431. This work's practical propositions on vision, , and instruments not only advanced scientific methodology but also informed liturgical and homiletic writings, linking empirical inquiry to devotional practices and elevating scholarly rigor within church governance.

References

  1. https://en.wikisource.org/wiki/Dictionary_of_National_Biography%2C_1885-1900/Peckham%2C_John
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