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Blessington
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Blessington, historically known as Ballycomeen (Irish: Baile Coimín, meaning 'town of Comyn', from the Irish surname Ó Coimín),[2] is a town on the River Liffey in County Wicklow, Ireland, near the border with County Kildare. It is around 25 km south-west of Dublin, and is situated on the N81 road, which connects Dublin to Tullow.[3] The town is in a townland and civil parish of the same name.[2]
Key Information
History
[edit]Etymology
[edit]The current name 'Blessington' was first recorded in 1667.[4] It may be based on a false etymology that confused the surname Coimín with the Irish word comaoin, which means blessing.[5]
Ancient and medieval history
[edit]
Evidence of Bronze Age activity in the area is demonstrated by the spectacular Blessington gold lunula, now in the British Museum.[7] The nearby Rath Turtle Moat was occupied from the 12th century onward by Norse Gaels and Normans.
Blessington was previously called Munfine, and in the medieval period was part of the lordship of Threecastles; Threecastles Castle is a three-storey tower house situated 5 km from Blessington, which was most likely built by Gerald Fitzgerald, Lord Deputy of Ireland, or his son Sir James Fitzgerald.[8]
The abandoned medieval village of Burgage More is just south of Blessington town. It was an ecclesiastical settlement and is the site of a ruined tower house and church.[9] A granite high cross named St. Mark's Cross was erected there in the 12th century beside a holy well. The cross was moved from Burgage More to Burgage Cemetery in the 20th century due to the construction of the Poulaphouca Reservoir and rising water levels.[10]
Early modern history
[edit]In 1667, Michael Boyle, Church of Ireland Archbishop of Dublin and Lord Chancellor of Ireland, bought the lordship, previously the property of the Cheevers, for £1,000. Archbishop Boyle received a royal charter to establish the town of Blessington, in the townland of Munfine, as a borough.
Construction of Blessington House was begun in 1673 and afterwards St Mary's Church on Main Street, which was completed in 1683. On Archbishop Boyle's death in December 1702, his son, Murrough Boyle, 1st Viscount Blesington, inherited the Blessington estate. Lord Blessington's son, Charles, 2nd Viscount Blesington, died in June 1732 without an heir, and the estate was inherited by his sister Anne, then her son, William Stewart, 1st Earl of Blessington. The earl died in August 1769 without an heir and the estate passed to Charles Dunbar, a great-grandson of the 1st Viscount Blessington, who also died heirless in 1778, when the estate passed to Wills Hill, 1st Earl of Hillsborough, whose seat was Hillsborough Castle in Hillsborough, County Down, a great-great-grandson of Archbishop Boyle. Lord Hillsborough was created as the 1st Marquess of Downshire in August 1789. The Hills held the estate until 1908.

The main road of the town is an example of a planned improvement of towns and villages associated with estates in the late 1700s and early 1800s.[11] Arthur Hill, the 3rd Marquess of Downshire commissioned a house to be built for his agent c. 1820.[12] The building later operated as the Downshire Hotel, until its closure in 2005.[13] The Marquess was also responsible for the construction of several prominent buildings in the town such as the Market House (c. 1820), Downshire Lodge (c. 1830), and the Parish schoolhouse (c. 1830).[12][14]
Russborough House, situated approximately 5 km south of Blessington, was built by the Leeson family, Earls of Milltown, and became the home of philanthropist Sir Alfred Beit (1903–1994), before becoming a museum.
20th-century history
[edit]During the Irish Civil War, Blessington became a place of strategic importance for the Anti-Treaty forces who regrouped in the town after defeat in Dublin. It was envisioned that they could use the town as a base from which to link up with other Anti-Treaty fighters to launch a new attack on Dublin in July 1922.[15] However, the plan was hampered by lack of coordination and provisions. The Anti-Treaty forces were quickly dispersed following a skirmish with Free State troops.
Above the nearby village of Lacken in the early hours of 18 April 1941, an RAF Handley Page Hampden aircraft (Registration AD730)[16][17] got lost in bad weather and crashed on Black Hill (Kilbeg)[18] killing its entire crew of four. The airmen were brought to Blessington and buried with full military honors on 22 April 1941 at St. Mary's Church by order of the Irish Government.[17] The Irish Times the day after reported that “During the funeral all shops in Blessington were closed and blinds drawn on windows.”[17] A memorial stone was unveiled at the crash site on 18 April 1991.[19][20]
Modern development
[edit]
Since the turn of the 21st century, Blessington's population has increased substantially, more than doubling from 2,509 at the 2002 census, to 5,010 by the time of the 2011 census.[21] Population reached 5,611 in 2022.[1] The majority of housing estates were constructed on the western side of the town, off the R410, which is the road to Naas. A new inner bypass has also been opened that alleviates traffic on Main Street to some degree.
Infrastructure improvements since 2005 include a playground, fire station, a central retail development, including a Dunnes Stores outlet and a public library (opened in 2006) above it, expansion of a SuperValu supermarket, and addition of an ALDI supermarket.[22]
Amenities
[edit]Pubs
[edit]The town has a number of pubs, namely Hennessy's, Miley's, Murphy's, the West Wicklow House and the Rambler's Rest.[23]
St Mary's Church
[edit]St Mary's Church is situated in Market Square, in the middle of the town. It was built around 1683, having been financed by Archbishop Boyle. While most of the church was rebuilt in the 19th century, the tower of this old church remains at the west end.[24]
The church is well known in the bell-ringing community for housing the oldest complete set of bells in Ireland. The six bells date to 1682 and were cast by James Bartlet, who was the master founder of Whitechapel at that time. The money for these was also given by Archbishop Boyle. They are still rung twice a week, for Sunday morning service and on Saturday nights, for ringing practice.[25][26]
While it holds the oldest peal of change-ringing bells in Ireland, the oldest bells hung for change-ringing in Ireland are found in St Audoen's Church in Dublin city centre. Three of the bells (the 3, 4, and 5 of the 6 bell-peal) date to 1453, and were cast in York.[27]
Poulaphouca Reservoir
[edit]
Also known locally as the Blessington Lakes, the reservoir was created in 1940 when the waterfall at Poulaphouca on the River Liffey (which flows from the Wicklow Mountains to Dublin) was dammed by the ESB for a hydroelectric plant which is still in use today. The valley was flooded and the resulting lakes extend over approximately 5,000 acres (2,023 ha). A small village called Ballinahown was submerged by the damming of the waterfall, and the remains of roads can still be seen leading down into the lake.
In addition to electricity, the lakes also provide water for the locality and the Dublin region as well as provide a leisure resource. There is now a lakeside luxury hotel complex in the Blessington area, with its own helipad, and lakeside facilities which have helped to develop tourism in the area. The lake is also extensively used by boatmen and fishermen, and is a training location for the Irish Air Corps HQ divisions from Baldonnel, 15 km north of Blessington, and also Local Civil Defence Water rescue teams.
Blessington Greenway
[edit]
The Blessington Greenway is a 6.5 km walking trail that links Blessington with Russborough House.[28] The trail starts in Blessington and leads south to The Avon activity centre at the southern edge of the town where it then follows along the lake shore, crossing a medieval ringfort, and uses the footpath along part of the N81 road before turning back into the forest at Burgage Moyle lane. It then crosses the Valleymount Road (R758) and makes its way to Russellstown Bay adjacent to Russborough House. A second phase for the greenway, laid out in a planning submission by Wicklow County Council in early 2022, is proposed to expand the trail to include a 33 km loop surrounding the lake, taking in the villages of Lacken, Valleymount and Ballyknockan.[29]
Transport
[edit]In 1888, the Dublin and Blessington Steam Tramway service commenced from Terenure to Blessington via Tallaght, linking with the horse trams from the city.[30] This service ended at the end of December 1932 and was replaced with a conventional bus service, Dublin Bus route 65. Lacking a train station in the town, this service continues to operate as the main public transport connection between Blessington and Dublin city. [citation needed]
Blessington is on the N81 national secondary road, and is connected via the R410 regional road with Naas. The latter starts in the south end of the town heading west and proceeds through a natural gap in the hills of Glending Forest and Eadestown. The route is treacherous during heavy winter snowfalls, and is sometimes closed in severe conditions.[citation needed]

Since August 2021, Blessington has been served by route 884, a Mon-Fri public bus service operated by TFI Local Link Kildare South Dublin, which connects the town with Naas and Sallins railway station. The arrivals at the railway station are scheduled to link in with departures to, and arrivals from, Heuston railway station in Dublin.[31]
Dublin Bus route 65, starting at Poolbeg Street in Dublin City Centre, takes approximately 1 hour 15 minutes and passes through Rathmines, Terenure, Templeogue, Tallaght, and Brittas on its way to Blessington.[32] A limited number of daily services on route 65 are also extended to Ballyknockan and Ballymore Eustace.[32] The Ballymore service routes via the N81, as does the Ballyknockan service.[32]
Bus Éireann route 132 (Dublin-Bunclody) routes via Tallaght Hospital, Blessington, Baltinglass and Rathvilly en route to Bunclody. One journey is extended weekly to Wexford and Rosslare Europort.[33]
Education
[edit]The town and its hinterlands are served by several primary schools and one secondary school.
The local primary schools include St Mary's National School, a Roman Catholic national school, which comprises St Mary's Junior National School (infants to 2nd class) and St Mary's Senior National School (3rd to 6th class). As of 2019, the combined coeducational school(s) had over 600 pupils enrolled.[34][35] The local Church of Ireland national school is known as Blessington Number 1 National School, and had approximately 200 pupils enrolled in 2018.[36]
Gaelscoil na Lochanna (School of the Lakes) is a gaelscoil which was founded in 2006 to cater for those in the area who wished to educate their children primarily through the Irish language. As of 2022, it had 169 pupils enrolled.[37] A nearby Educate Together national school was founded in 2006 on the site of a long-standing school and has a large sports field.[38]
The only secondary school in Blessington, Blessington Community College, is on the Naas Road and had an enrolment (in 2022) of 584.[39]
Notable people
[edit]Former or current residents of the town have included:
- Bobbi Arlo, singer[40]
- Sir Alfred Lane Beit (1903–1994), British Conservative Party politician, art collector, philanthropist, honorary Irish citizen, and owner of Russborough House.[41][42]
- Gerald Boland (1885–1973), Irish Fianna Fáil politician who briefly commanded the 3rd South Dublin Brigade in Blessington.[43]
- Jack Boothman (1935–2016), 31st president of the Gaelic Athletic Association (GAA) between 1994 and 1997.[44]
- Elizabeth Grant (1797–1885), Scottish diarist and lady of the manor of Baltyboys House.[45][46]
- Josh Gray (born 1997), former member of disbanded six-piece Irish boy band HomeTown (2014–2016) managed by Louis Walsh.[47][48]
- John Lackey, Irish road racing cyclist, cycle sport administrator and Tour of Ireland race director.[citation needed]
- Frank McCann, Blessington publican[49] convicted of the murder of his wife Esther and eighteen-month-old foster-daughter Jessica in September 1992.
- Kevin McClory (1924–2006), Irish screenwriter, film producer, and film director who produced the James Bond film Thunderball.[50][unreliable source?]
- Lorenzo Moore (1808–1894), noted Anglican clergyman in New Zealand, who was born in Blessington.[51]
- Dr. Patrick Purcell, owner of the car which was linked to the killing of Lizzie O'Neill in June 1925.[52]
- Louise Quinn (born 1990), Republic of Ireland national football team player.[53]
- Isaac Sharp (1681–1735), early New Jersey settler, politician and judge who settled in Salem County, New Jersey and originally named the area Blessingtown after his home town.[54]
- Dame Ninette de Valois (née Edris Stannus) (1898–2001), Irish-born British[55] dancer, choreographer, and director of classical ballet who spent her childhood at Baltiboys near Blessington.[56]
- Brian Warfield (born 1946), vocalist, banjo, harp, and bodhrán player and lead songwriter with Irish band The Wolfe Tones.[57][58]
See also
[edit]- Gleninsheen gorget – Bronze Age gold collar from Ireland
- KnockanStockan – Irish independent music festival which existed from 2007 to 2019
- List of towns and villages in Ireland
- Market Houses in Ireland
- Seefin Passage Tomb – Passage grave in County Wicklow, Ireland
References
[edit]- ^ a b "Census 2022 - F1015 Population". Central Statistics Office Census 2022 Reports. Central Statistics Office Ireland. August 2023. Retrieved 16 September 2023.
- ^ a b "Baile Coimín/Blessington". logainm.ie. Irish Placenames Database. Retrieved 30 March 2020.
- ^ "Blessington Bulletin". independent.ie. Wicklow People. 11 April 2020. Retrieved 1 July 2021.
- ^ "Baile Coimín/Blessington". Logainm. Retrieved 30 May 2023.
- ^ "Blessington". Wicklow Heritage. Retrieved 30 May 2023.
- ^ "Object: The Blessington lunula, museum number WG.31". British Museum.
'Description: Gold lunula. Flat sheet crescent of beaten gold with quadrangular terminals
- ^ "The Blessington lunula". British Museum. Retrieved 11 January 2018.
- ^ "Threecastles". County Wicklow Heritage. Retrieved 29 May 2023.
- ^ "Burgage More". Wicklow Heritage. Retrieved 29 May 2023.
- ^ "St. Mark's Cross". Visit Wicklow. Retrieved 29 May 2023.
- ^ Darley, Gillian (1975). Villages of vision. London: Architectural Press. p. 148. ISBN 0-85139-705-0. OCLC 1921555.
- ^ a b "Blessington Heritage Trail". County Wicklow Heritage. 30 March 2020. Retrieved 7 July 2023.
- ^ Buchanan, Myles (3 November 2005). "How the hotel industry is changing in Wicklow". Irish Independent. Retrieved 7 July 2023.
- ^ Trant, Kathy (2005–2006). "The Blessington Estate & the Downshire Connection". Lisburn. Retrieved 7 July 2023.
- ^ Ó Maonaigh, Aaron (22 November 2021). "Civil War casualties in County Wicklow, 1922-1923". The Irish Story. Retrieved 30 May 2023.
- ^ "Handley Page Hampden Mk I AD730, 18 Apr 1941". aviation-safety.net. Aviation Safety Network. 18 April 1941. Retrieved 16 April 2022.
- ^ a b c Lennon, Mattie (30 March 2020). "Kylebeg and World War II". County Wicklow Heritage. Retrieved 16 April 2022.
- ^ "An Chill Bheag/Kilbeg". Placenames Database of Ireland (logainm.ie). Government of Ireland - Department of Arts, Heritage and the Gaeltacht and Dublin City University. Retrieved 12 April 2022.
- ^ "What is Known about the Last Flight of AD730". Irish Aviation.
- ^ "Handley Page Hampden Mk I AD730, 18 Apr 1941". aviation-safety.net. Aviation Safety Network. 18 April 1941. Retrieved 16 April 2022.
- ^ "Blessington (Ireland) Census Town". City Population. Retrieved 30 March 2020.
- ^ Buchanan, Myles (28 July 2022). "Aldi Blessington reopens after Project Fresh revamp costing nearly €1 million". Wicklow News. Irish Independent. Retrieved 8 July 2023.
- ^ "Pubs in Blessington". Food and Drink. Blessington Tourist Office. 2024. Retrieved 17 July 2024.
- ^ "Blundell House Additional Images: Buildings of Ireland: National Inventory of Architectural Heritage". www.buildingsofireland.ie. Retrieved 11 January 2018.
- ^ "St Mary Blessington - BellringingIreland.org". www.bellringingireland.org. Retrieved 11 January 2018.
- ^ "Bells at St. Mary's Church of Ireland are the oldest surviving set in the country Pealing the age-old bells of Blessington - Independent.ie". Retrieved 11 January 2018.
- ^ "St Audeon Dublin - BellringingIreland.org". www.bellringingireland.org. Archived from the original on 9 February 2019. Retrieved 11 January 2018.
- ^ "The Blessington Greenway". blessington.ie. Retrieved 18 June 2022.
- ^ Buchanan, Myles (19 January 2022). "Blessington to become a major walking and cycling destination as greenway plans are submitted". Wicklow People. Retrieved 18 June 2022.
- ^ "Co. Kildare Online Electronic History Journal: BLESSINGTON TRAM - LAST RUN - NEW YEAR'S EVE 1932". www.kildare.ie. Retrieved 11 January 2018.
- ^ "Route 884 Ballymore Eustace to Sallins Train Station via Naas". Local Link Kildare South Dublin.
- ^ a b c "Timetable, Route 65". Dublin Bus. Archived from the original on 2 July 2022. Retrieved 23 April 2022.
- ^ "Timetable - Route 132. DUBLIN - BALTINGLASS - TULLOW - BALLON - KILDAVIN - BUNCLODY". Bus Éireann.
- ^ "St Mary's Senior National School, Blessington". education.ie. Department of Education. Archived from the original on 30 March 2020.
- ^ "St Mary's Junior School, Blessington". education.ie. Department of Education. Archived from the original on 30 March 2020.
- ^ "Whole School Evaluation Management, Leadership And Learning Report - Blessington 1 National School" (PDF). education.ie. Department of Education. 23 January 2018. Retrieved 30 March 2020.
- ^ "Gaelscoil na Lochanna". Gov.ie. 17 February 2023. Retrieved 30 May 2023.
- ^ "History of Blessington Educate Together National School". educatetogether-blessington.ie. Retrieved 30 March 2020."Blessington Educate Together National School". Gov.ie. 17 February 2023. Retrieved 30 May 2023.
- ^ "Blessington Community College". Gov.ie. 17 February 2023. Retrieved 30 May 2023.
- ^ O'Flaherty, Aideen (10 February 2021). "Bobbi Arlo: Artist features in RTÉ 2fm's rising list 2021". The Echo. Retrieved 13 April 2025.
- ^ Diaries will stay secret 'to protect the Queen' — The Times, 11 September 2006
- ^ National Gallery of Ireland Archived 10 December 2006 at the Wayback Machine — National Gallery of Ireland website, Retrieved 26 November 2006.
- ^ "History Ireland: Women active in IRA flying columns?". 6 March 2013. Retrieved 3 March 2016.
- ^ Jack Boothman: first Protestant president of the GAA
- ^ Christine Lodge, ‘Smith, Elizabeth (1797–1885)’, Oxford Dictionary of National Biography, Oxford University Press, 2004 accessed 24 November 2017
- ^ TeBrake, Janet K. "Personal narratives as historical sources: the journal of Elizabeth Smith 1840-1850 (3:1)". History Island. History Publications Ltd. Retrieved 3 March 2019.
- ^ "Louis Walsh picks Derry's Gareth for new boy band". derryjournal.com.[permanent dead link]
- ^ "Hometown: Some people ask us for photos and then say we'll keep this for when you're famous". 21 March 2015. Retrieved 21 March 2015.
- ^ The Case I Can't Forget: Esther and Jessica McCann (Television production). 13 December 2021. Event occurs at 28:46.
- ^ Kevin McClory at IMDb
- ^ Limbrick, Warren E. "Lorenzo Moore". Dictionary of New Zealand Biography. Ministry for Culture and Heritage. Retrieved 23 April 2017.
- ^ Blain, Emma (5 June 2008). "An Honour Killing". Evening Herald. Retrieved 23 July 2015.
- ^ "Louise Quinn in my own words". Arsenal F.C. 25 February 2020. Retrieved 18 September 2022.
- ^ The Pennsylvania Magazine of History and Biography, Volume 20 (1896). Philadelphia: Historical Society of Pennsylvania, p. 134
- ^ Ninette de Valois. Encyclopaedia Britannica. Retrieved 2 November 2018.
- ^ "Come Dance With Me – A Memoir 1898-1956". Lilliput Press. 2017. Retrieved 2 December 2017.
- ^ Nickson, Chris. "Biography: Wolfe Tones". Allmusic. Retrieved 2 May 2010.
- ^ Gallagher, Jim (2 July 2017). "Wolfe Tones brothers reveal they haven't met since split 16 years ago". Irish Mirror.
Further reading
[edit]- The Four Stone Tree: a history of Blessington by Vincent Byrne (self-published, 2003)
- The Blessington Estate 1667-1908 by Kathy Trant (Anvil Books, 2004)
External links
[edit]Blessington
View on GrokipediaGeography
Location and Topography
Blessington is situated in County Wicklow, within the province of Leinster in the Republic of Ireland, at geographic coordinates 53°10′12″N 6°31′59″W.[7] The town lies approximately 26 kilometers southwest of Dublin city center, providing relatively easy access to the capital via regional roads.[8] The topography of Blessington features undulating terrain on the western flank of the Wicklow Mountains, with local elevations ranging from 180 to 250 meters above ordnance datum.[9] The town itself sits at an average elevation of 207 meters, amid rolling hills that transition into the higher uplands of the surrounding mountain range.[10] This positioning places Blessington at the edge of Ireland's largest continuous upland area, characterized by glacial influences including U-shaped valleys and exposed bedrock outcrops. The immediate landscape supports a mix of agricultural land and natural features, shaped by the proximity to elevated moorlands and valleys.[11]Poulaphouca Reservoir and Hydrology
Poulaphouca Reservoir, commonly known as the Blessington Lakes, is an artificial body of water created by the construction of the Poulaphouca Dam across the River Liffey.[12] Dam construction commenced in 1937 under the Electricity Supply Board (ESB), with reservoir impoundment beginning on 3 March 1940.[12] The reservoir covers a surface area exceeding 20 square kilometers and provides substantial storage for hydroelectric generation, serving as one of Dublin's primary water sources.[13] [14] The reservoir's hydrology is integral to the regional water management system, with a flood storage capacity equivalent to approximately 50% of the average annual inflow into the River Liffey catchment.[12] It functions as a flood attenuation structure, designed to safely discharge high flows while maintaining downstream river levels, thereby mitigating flood risks in the Liffey Valley.[12] [15] Water levels fluctuate seasonally and in response to precipitation, directly influencing river flows and groundwater recharge in surrounding areas.[16] In relation to Blessington, the reservoir bounds the town to the east and south, dominating local surface and subsurface hydrology.[17] The local aquifer exhibits hydraulic connectivity to the reservoir, supporting public water supplies that draw from both surface water abstractions and groundwater influenced by lake levels.[18] [19] This integration enhances water availability but necessitates careful management to prevent contamination pathways or altered flow regimes affecting the town's water quality and flood vulnerability.[20]History
Etymology and Early Settlement
The name Blessington derives from the Irish Baile Coimín, translating to "town of Coimín," a reference to the surname Ó Coimín associated with early landowners or inhabitants in the area.[21] The English rendering "Blessington," first attested in 1667, arose from a folk etymology that misinterpreted Baile Coimín as Baile Comaoin or a similar form implying "town of the blessing," possibly influenced by ecclesiastical connotations during the Protestant plantation era under figures like Archbishop Michael Boyle.[21] [22] This mistranslation persisted despite the original Gaelic form's persistence in local records until the late 17th century.[23] Prehistoric occupation in the Blessington vicinity is evidenced by Bronze Age artifacts, notably a gold lunula unearthed locally and dated to approximately 2400–2000 BC. This flat, beaten-gold crescent, measuring about 22 cm across with quadrangular terminals and intricate incised geometric motifs, resides in the British Museum (catalogue WG.31) and typifies elite or ceremonial items from Ireland's late Neolithic to early Bronze Age transition.[24] Such finds indicate sporadic human presence for metallurgy, trade, or ritual purposes along the River Liffey valley, though no permanent settlements from this era have been confirmed.[24] Early medieval activity centered on Burgage More, where a Christian ecclesiastical site likely existed by the 5th–6th centuries, potentially linked to Domhnach Imlech (church of the churchyard stone) as referenced in annals.[25] A key remnant is St. Mark's Cross (formerly St. Boaitin's Cross), a 4.2-meter granite pillar erected in the 12th century adjacent to a church ruin and holy well, featuring symbolic carvings that align with high cross traditions marking sacred enclosures.[26] [27] This structure, relocated to Blessington's modern cemetery in the 19th century, underscores the site's role in the Christianization of Wicklow's uplands amid Gaelic monastic networks.[26] Archaeological investigations in 2022 at a development site revealed an early medieval settlement enclosed by a substantial ditch, yielding structural remains and artifacts consistent with 7th–10th century habitation, including evidence of agrarian and communal organization predating Anglo-Norman incursions.[28] These discoveries, conducted by licensed excavators, affirm clustered ringfort-like features in the broader landscape, though the area's rugged terrain limited dense populations until later medieval consolidation.[28] No Viking or substantial pre-Norman urban nuclei are documented, aligning with Wicklow's peripheral status in early Irish state formation.[27]Medieval and Early Modern Period
During the medieval period, the area encompassing modern Blessington formed part of the lordship of Threecastles, strategically positioned along the River Liffey to control key crossings and trade routes in County Wicklow.[29] A prominent feature was Threecastles tower house, a three-storey medieval structure built at the end of the 14th or beginning of the 15th century, originally one of three fortifications in the vicinity to defend against incursions from Gaelic clans such as the O'Byrnes and O'Tooles.[30][31] In 1547, the castle site witnessed a significant engagement where English forces allied with the O'Tooles defeated the FitzGerald earls of Kildare, highlighting its role in the turbulent Anglo-Irish conflicts of the late medieval era.[31] Local traditions associate an earlier 13th-century name, Villacomin or Baile Coimin, with Archbishop John Comyn, suggesting sparse settlement tied to ecclesiastical influence, though primary records remain limited.[32] The early modern period marked the transformation of the region through English plantation efforts and estate consolidation. In 1667, Michael Boyle, Archbishop of Dublin and Lord Chancellor of Ireland, purchased the lordship of Threecastles for £1,000, acquiring over 17,000 acres that included townlands such as Munfin, Ballycommon, and Threecastles.[29][33] Boyle founded the town of Blessington as a planned settlement, establishing it as a free borough with a sovereign, bailiffs, and burgesses empowered to elect two members to the Irish Parliament; he also instituted weekly Thursday markets, subsidized an inn, and funded infrastructure like roads, bridges, street lighting, and a Protestant school.[33] He constructed St. Mary's Church in the 1670s, dedicated in 1683 and featuring Ireland's oldest public clock, alongside a grand mansion house and a deer park enclosed for exclusive hunting rights enforced by bailiffs and a dedicated court.[29][33] By the late 17th century, Boyle's son Murrough was created 1st Viscount Blessington, securing the estate's prominence.[29] In the 18th century, the property transferred to the Hill family through marriage; William Hill, 1st Earl of Hillsborough, was elevated to Marquis of Downshire in 1789, renaming the mansion Downshire House and expanding agricultural and milling operations, including a corn mill on the Liffey.[29][33] This era solidified Blessington's role as a manorial center amid broader Protestant ascendancy land policies, though tensions persisted with local Catholic tenantry.[33]19th-Century Development and Market Town Status
The 19th century marked a period of infrastructural and economic consolidation for Blessington under the stewardship of the Marquesses of Downshire, who held extensive lands in the area as improving landlords promoting agricultural advancements such as better farming practices and estate management.[34] The 3rd Marquis, Arthur Blundell Sandys Trumbull Hill (1788–1871), took a particular interest in the estate from around 1813, overseeing developments that enhanced local productivity and trade.[35] By the mid-century, the Hill family remained the dominant landowners, residing at Downshire Lodge and influencing town layout with terraced housing centered around a market square.[36] A key emblem of this era was the construction of the Market House around 1820, a three-bay two-storey structure in ashlar granite located on Main Street, commissioned by the 3rd Marquis to function as both a marketplace and courthouse.[37] [38] Materials for the building included stones salvaged from the ruins of the earlier Blessington House, demolished after a fire in 1790, reflecting pragmatic reuse in estate-led development.[3] This facility formalized Blessington's role as a market town, hosting trade in agricultural goods, livestock, and local products, building on earlier patents for markets and fairs that had lapsed but supported periodic gatherings like an August pleasure fair.[39] [40] Economic activity diversified with the expansion of granite quarrying in nearby Ballyknockan, supplying durable stone for local and Dublin buildings, as advertised by the mid-19th-century Horseshoe Arch on Main Street—a Victorian-era promotional feature highlighting the material's quality.[38] These developments, amid Ireland's broader Great Famine (1845–1852) which depopulated many rural areas, positioned Blessington as a resilient estate-centered hub reliant on landlord investment rather than widespread industrialization.[41]20th-Century Reservoir Creation and Population Displacement
![Remains of a submerged road leading into Poulaphouca Reservoir][float-right] The Poulaphouca Reservoir, commonly referred to as the Blessington Lakes, was formed through the construction of the Poulaphouca Dam by the Electricity Supply Board (ESB) as part of Ireland's early hydroelectric development efforts. Work on the 100-foot-high dam began in November 1937, with flooding of the River Liffey valley initiating on 3 March 1940 and continuing until completion in 1947.[42][43] The project aimed to generate electricity for the national grid and supply water to Dublin, submerging roughly 5,000 acres of land below 188.4 meters Ordnance Datum, including fertile valleys and infrastructure like roads and the former Poulaphouca waterfall.[44][42] This engineering endeavor led to significant population displacement in the rural communities surrounding Blessington, particularly affecting the village of Ballinahown (also spelled Ballinahowan), which housed over 70 families prior to inundation. Approximately 76 homes were demolished, alongside 55 residential holdings and 12 laborers' cottages, while up to 300 farms experienced partial impacts through land loss or fragmentation.[45][14][42] Up to 80 houses were abandoned entirely, forcing the relocation of dozens of families, many of whom resettled in nearby areas such as County Kildare.[46][45] The displacement process drew criticism for inadequate compensation and relocation support provided by authorities, described in local historical accounts as a "shameful treatment" that evoked strong emotions among affected residents.[47] Compulsory purchases preceded the flooding, but disputes over valuations and housing alternatives persisted, underscoring tensions between national infrastructure goals and individual livelihoods in post-independence Ireland.[47][42] Despite these hardships, the reservoir's creation transformed the regional hydrology and economy, though remnants like submerged roads serve as visible testaments to the lost settlements.[46]21st-Century Expansion and Urban Pressures
In the early 2000s, Blessington experienced rapid population growth as a commuter satellite to Dublin, with the town's population increasing from approximately 2,500 in 2002 to over 5,000 by 2011, fueled by suburban housing developments along routes like the N81 and Naas Road.[48] This expansion reflected Ireland's Celtic Tiger-era housing boom, where low-interest credit and Dublin's economic pull drove residential construction, transforming Blessington from a rural market town into a dormitory settlement with net outward commuting exceeding 1,400 residents daily by 2022.[49] By the 2016 census, the population stood at 5,234, reaching 5,611 in 2022, with projections under the Wicklow County Development Plan targeting 6,313 by 2031 to accommodate a 20-25% increase through infill and edge-of-centre zoning.[49][48] Urban expansion has centered on zoned residential lands, such as the 21.8 hectares of RN1 (edge-of-centre) and 4.1 hectares of RN2 (out-of-centre) designations in the 2025-2031 Blessington Local Area Plan (LAP), enabling up to 519 additional housing units by 2031, including large-scale projects like the approved 329-unit Blessington Demesne development.[49][50] The LAP prioritizes compact growth via brownfield redevelopment and opportunity sites (e.g., OP1-OP9 for mixed-use), but post-2008 crash recovery has seen uneven progress, with some proposals like 13 homes at Burgage refused in 2025 due to inadequate road capacity.[51] Infrastructure upgrades, including wastewater treatment plant expansions to 9,000 population equivalents, have supported this, yet social housing delivery faces delays, as evidenced by the 2024 jeopardy of 106 units at Burgage More after a public-private partnership collapse.[49][52] These developments have intensified urban pressures, particularly traffic congestion on the N81, which bisects the Main Street and handles high commuter volumes without full relief from the incomplete Blessington Inner Relief Road, leading to calls for its urgent completion since 2022.[53][49] High car dependency— with 1,497 residents commuting out versus 657 in—exacerbates bottlenecks, prompting LAP objectives for N81 realignment, active travel links, and modal filters, though greenway extensions faced refusal in 2024 amid safety concerns.[49] Housing affordability strains mirror national trends, with average second-hand prices reaching €396,000 in 2025, driven by supply-demand imbalances and Dublin spillover, while childcare and community facility shortfalls persist despite zoned allocations like 6.3 hectares for education.[54][49] The 2023 Town Centre First Plan identifies traffic mismanagement and infrastructure gaps as key business challenges, underscoring the tension between growth targets and sustainable capacity.[55]Demographics
Population Growth and Trends
The population of Blessington has grown substantially since the late 20th century, reflecting broader trends in County Wicklow and the Greater Dublin Area, where expansion was driven by economic development and inbound migration from Dublin commuters seeking affordable housing in proximity to urban employment centers.[56] From 1,408 residents in the 1991 census to 5,611 in 2022, the town more than quadrupled in size over three decades, with the most rapid increases occurring during Ireland's economic boom from the mid-1990s to mid-2000s.[48] [57] This expansion contrasted with earlier stagnation or modest change, including limited direct demographic disruption to the town center from the 1930s Poulaphouca Reservoir construction, which primarily displaced rural populations in surrounding valleys rather than urban dwellers.[58] Key census data illustrate the trajectory:| Census Year | Population | Percentage Change from Previous Census |
|---|---|---|
| 1991 | 1,408 | - |
| 1996 | 1,860 | +32.1% |
| 2002 | 2,509 | +34.8% |
| 2006 | 3,161 | +25.9% |
| 2016 | 5,520 | +74.6% (from 2006) |
| 2022 | 5,611 | +1.6% |