The Bishop of Killaloe ( ) is an episcopal title which takes its name after the town of Killaloe in County Clare, Ireland. In the Roman Catholic Church it remains a separate title, but in the Church of Ireland it has been united with other bishoprics.

History The Diocese of Killaloe was one of the twenty-four dioceses established at the Synod of Rathbreasail in 1111. The boundaries of the diocese consisted of almost all of County Clare, the northern part of County Tipperary and the western part of County Offaly. Its Irish name is Cill-da-lua (Church of Lua), so named from St Mo Lua, an abbot who lived in the late 6th century. At the Synod of Kells in March 1152, Killaloe some lost territory when the dioceses of Kilfenora, Roscrea and Scattery Island were created.

Following the Reformation, there are now parallel Killaloe dioceses: one of the Church of Ireland and the other of the Roman Catholic Church.

In Church of Ireland The pre-Reformation Cathedral Church of St Flannan, Killaloe continued as the Church of Ireland bishop's seat (cathedra). The Church of Ireland title was united with Kilfenora in 1752, and again with Clonfert & Kilmacduagh in 1834. Since 1976, it has been part of the united bishopric of Limerick and Killaloe.

In the Roman Catholic Church The Roman Catholic bishop's seat is located at St Peter and St Paul Cathedral in Ennis, County Clare. The current bishop of the Roman Catholic Diocese of Killaloe is the Most Reverend Fintan Monahan who succeeded on 25 September 2016.

Pre-Reformation bishops Pre-Reformation Bishops of KillaloeFromUntilIncumbentNotesunknown1098Domnall Ua hÉnna Idied 1 December 1098dates unknownGilla Pátrick Ua hÉnnaunknown1131Domnall Ua Conaing translated to Cashel in 1131c. 1131c. 1137/38Domnall Ua Lonngargáin translated to Cashel c. 1137 or 1138c. 11381161Tadg Ua Lonngargáindied in officec. 11611164Donnchad mac Diarmata Ua Briaindied in officebef. 11791194Constantín mac Toirrdelbaig Ua Briaindied in office11941195Diarmait Ua Conaingdied in officebef. 12011216Conchobhar Ua h-Énnadied in office; also known as Cornelius1216unknownDomnall Ua h-Énna IIelected 1216; confirmed by Pope Honorius III 1219; consecrated 1221; also known as Donatus12171221/26Robert Traverselected before 14 January 1217; consecrated after 14 January 1217; deprived 1221, and again May 122612311252Donat O'Kennedyelected before 1231; died before 1252; also known as Donatus12531267Ísóc Ó Cormacáinelected before 5 April 1253; appointed and consecration 23 June 1253; resigned before 10 November 1267; also known as Isaac12681281Mathgamain Ó h-Ócáinelected before 20 March 1268; died 12 August 1281; also known as Matthaeus12811298Mauricius Ó h-Ócáinelected 23 November 1281; died before October 129812991317David Mac Mathghamnaelected 7 January 1299; consecrated May 1299; died 9 February 1317; also known as David Mac Mahon13171322Tomás Ó Cormacáin Ielected before 2 July 1317; died 31 July 13221323c. 1325Brian Ó Coscraigelected before 1 August 1323; died c. 1325; also known as Benedictus13261342David Mac Briainelected before May 1326; appointed 25 May 1326; died 12 December 1342; also known as 'David of Emly'? 13261334Unatus O Heimepossibly elected in 1326; died 1334; also may known as Uaithne Ó hÉnnaunknown1354Tomás Ó h-Ógáindied 30 October 135413551382Tomás Ó Cormacáin IIelected before May 1355; appointed 27 May 1355; died 138213891400Mathghamhain Mág Raithappointed before August 1398; died before February 1400; also known as Matthaeus14001421Donatus Mág Raith, O.S.A.appointed before 8 February 1400; consecrated before 9 April 1400; died after August 14211409Robert Mulfield, O.Cist.appointed 9 September 1409, but did not get possession; acted as a suffragan bishop in the Diocese of Lichfield c. 1418 to 144014181431Eugenius Ó Faoláintranslated from Kilmacduagh; resident in a portion of the diocese; died before 24 July 143114231443Thaddaeus Mág Raith Iappointed 25 October 1423; consecrated after 5 November 1423; died before July 144314291443Séamus Ó Lonnghargáintranslated from Annaghdown 9 December 1429; consecrated c. December 1429; resigned c. July 144314431460Donnchadh mac Toirdhealbhaigh Ó Briainappointed 26 July 1443; consecrated after 12 August 1443; died before August 146014601463Thaddaeus Mág Raith IIappointed 18 August 1460; consecrated 2 September 1460; died before May 146314631483Matthaeus Ó Gríobhthaappointed 23 May 1463; consecrated after 7 July 1463; died c. September 148314831526Toirdhealbhach mac Mathghamhna Ó Briainappointed 19 September 1483; died before August 1526; also known as Theodoricus or Thaddaeus15261542Séamus Ó Cuirrínappointed 24 August 1526; swore the Oath of Supremacy at Clonmel early in 1539; resigned 5 May 1542; died before June 1554; also known as James O'Currin Source(s):

Post-Reformation bishops

Church of Ireland bishops Church of Ireland Bishops of KillaloeFromUntilIncumbentNotes1546c. 1554Cornelius O'Deanominated by King Henry VIII 30 May 1546; consecrated 12 July 1546; died between 1568 and 157615541569Turlough O'Brien appointed bishop of both successions on 25 June 1554 when they were temporarily reunited under Queen Mary I; in a letter of 12 October 1561, the papal legate Fr David Wolfe SJ described all the bishops in Munster as 'adherents of the Queen'; died 1569; also known as Terence O'Brien15701612Murtogh O'Brien-Arranominated 17 May 1570. Queen Elizabeth I ordered the revenues of the see to be allowed to him until he should be old enough to be consecrated. In 1575, the queen still considered he was too young. He resigned in 1612 and died 30 April 163216121632John Ridernominated 5 July 1612; consecrated 12 January 1613; died 12 November 163216331646Lewis Jonespreviously Dean of Cashel (1607–33); nominated 14 December 1632; consecrated 12 April 1633; died 2 November 1646; buried at St Werburgh's Church, Dublin16471650Edward Parrynominated 29 December 1646; consecrated 28 March 1647; died of the plague in Dublin 20 July 1650 and buried at St. Audoen's Church, Dublin.16501660See vacant16601669Edward Worthnative of County Cork; nominated 7 August 1660; consecrated 27 January 1661; died in Hackney 2 August 1669 and buried at St Mildred's Church, Bread Street, London16691675Daniel Witternominated 4 August and consecrated September 1669; died 16 March 167516751692John Roana Welshman; nominated 28 March and consecrated June 1675; died 5 September 1692 and buried in Killaloe Cathedral16931695Henry Ridernominated 13 May and consecrated 11 June 1693; died in Dublin 30 January 169616951713Thomas Lindsay, D.D.nominated 12 February and consecrated 22 March 1696; translated to Raphoe 6 June 1713, and subsequently to Armagh 4 January 171417131714Sir Thomas Vesey, 1st Baronetson of John Vesey, Archbishop of Tuam (1679–1716); nominated 11 May 1713 and consecrated 12 July 1713; translated to Ossory 28 April 171417141716Nicholas Forstersenior Fellow of Trinity College Dublin; nominated bishop 7 October and consecrated 7 November 1714; translated from Killaloe to Raphoe.17161739Charles Carr, M.A.previously chaplain of the Irish House of Commons; nominated bishop 26 May and consecrated in June 1716; died in Dublin on 26 December 173917401742Joseph Story, M.A.previously Dean of Ferns (1734–40); nominated 16 January and consecrated 10 February 1740; translated to Kilmore 29 January 174217421743John Ryder, D.D.nominated 18 January and consecrated 21 February 1742; translated to Down and Connor 1 August 174317431745Jemmett Brownepreviously Dean of Ross (1733–43); nominated 29 August and consecrated 9 October 1743; translated to Dromore 16 May 174517451746Richard Chenevix, D.D.nominated 26 April and consecrated 28 July 1745; translated to Waterford and Lismore 15 January 174617461752Nicholas Synge, D.D.nominated 23 December 1745 and consecrated 26 January 1746; became Bishop of Killaloe and Kilfenora in 1752In 1752, the Church of Ireland see became the united bishopric of Killaloe and Kilfenora. Source(s):

Roman Catholic succession