# Bishop of Ardagh

The Bishop of Ardagh was a separate episcopal title which took its name after the village of Ardagh, County Longford in Ireland. It was used by the Roman Catholic Church until 1756, and intermittently by the Church of Ireland until 1839.
Tradition states that a monastery was founded at Ardagh by St Patrick, and that his nephew, St. Mel (died c.490), was its bishop or abbot. Although there is no historical or archaeological evidence to support it, Mel is regarded as the founder of the see.
The diocese of Ardagh was established in 1111 at the Synod of Rathbreasail as the see for east Connacht. At the subsequent Synod of Kells in 1152, its area was reduced to the territory of the Conmaicne.
Ardagh Cathedral was severely damaged by warfare in 1496 and was never restored. There are remains of an eighth- or ninth-century church at Ardagh, which is known as St. Mel's Cathedral, although it dates from three centuries after the saint's death, and predates the introduction of a diocesan system in Ireland.
Following the Reformation, there were parallel apostolic successions. In the Roman Catholic Church, the bishopric has been united with Clonmacnoise since 30 May 1756. Until the mid 19th-century, the parish church of Ballymahon had served as a pro-cathedral for the Roman Catholic Diocese of Ardagh and Clonmacnoise. A new St Mel's Cathedral in Longford was built for the diocese between 1840 and 1856. The building was destroyed by fire in the early hours of Christmas Day 2009.
In the Church of Ireland, Ardagh was intermittently held with Kilmore between 1604–1633, 1661–1692 and 1693–1742, then held with Tuam 1742–1839. Ardagh was again united to Kilmore 1839–1841. Since 1841, Ardagh has been part of the bishopric of Kilmore, Elphin and Ardagh.

## Pre-Reformation bishops

Pre-Reformation Bishops of Ardagh :
| From | Until | Ordinary | Notes |
| bef.1152 | 1166 | Mac Raith ua Móráin | Present at the Synod of Kells in March 1152; resigned in 1166; died 1168 |
| bef.1172 | 1178 | Gilla Crist Ua hEóthaig | Called "bishop of Conmaicne"; died in 1178; also known as Christianus |
| unknown | 1188 | Ua hÉislinnén | Called "bishop of Conmaicne"; died in office |
| unknown | 1216 | Annud Ua Muiredaig | Died in office; also known as Adam |
| 1217 | 1224 | Robert, O.Cist. | Abbot of St. Mary's Abbey, Dublin until became bishop in 1217; died on 27 May 1224 |
| c.1224 | c.1229 | Simon Magraith | Prior of Inis Mór until became bishop c. 1224; died c. 1229; also known as MacBath or MacGeoffrey |
| 1228 | 1230 | Joseph Mac Teichthecháin | Elected 1227; consecrated c. 1228; died 1230; also known as Joseph Mac Eódaig ('Magoday') |
| c.1229 | 1230 | Mac Raith Mac Serraig | Elected and consecrated c. 1229; died 1230 |
| fl. c.1230 | fl. c.1230 | Thomas | |
| c.1232 | 1237 | Gilla Ísu mac in Scélaige Ó Tormaid | Elected and consecrated c. 1232; died in 1237; also known as Gelasius |
| c.1232 | c.1237 | Iocelinus, O.Cist. | Elected and consecrated c. 1232; took control of temporalities on 1 March 1233; resigned before 1237 |
| 1238 | 1252 | Brendán Mac Teichthecháin | Elected c. 1238; resigned on 15 October 1252; died in 1255; also known as Brendán Mac Eódaig ('Magoday') |
| 1256 | 1288 | Milo of Dunstable | Elected before 20 May 1256; temporalities on 13 January 1257; died on 23 October 1288 |
| 1290 | 1322 | Matha Ó hEóthaig | Elected November 1289; fealty on 28 January 1290; temporalities on 8 April 1290; died in office; also known as Matthaeus |
| 1323 | 1323 | (Robert Wirsop, O.E.S.A.) | Appointed on 5 April 1323, but did not get possession of the see; translated to Connor on 20 June 1323 |
| 1324 | 1343 | Seoán Mág Eóaigh | Elected before March and consecrated before 12 May 1324; died in office; also recorded as John Magee |
| 1347 | 1367 | Eóghan alias Maolsheachlainn Ó Fearghail | Elected c. 1344; consecrated c. 1347; died in office |
| 1368 | 1373 | Uilliam Mac Carmaic | Elected c. 1368; died, by a fall from his horse, before August 1373; also recorded as William MacCarmaic |
| 1373 | 1378 | Cairbre Ó Fearghail | Elected before September 1373; died in 1378 |
| 1373 | unknown | John Aubrey, O.P. | Elected before September 1373; appointed on 29 April 1374 |
| 1392 | 1392 | (Henry Nony, O.P.) | Appointed on 29 April 1392, but did not get possession of the see; acted as a suffragan bishop in the dioceses of Exeter 1396–99, and Bath & Wells 1400; died after 1400 |
| 1395 | 1400 | Comedinus Mac Brádaigh | Appointed on 20 October 1395 and consecrated after 19 August 1396; died before February 1400; also known as Gilbert MacBrady |
| 1400 | 1416 | Adam Leyns, O.P. | Appointed on 15 February 1400; died June 1416 |
| 1416 | 1423 | Conchobhar Ó Fearghail | Elected after June 1416; appointed on 17 February 1418; consecrated on 3 February 1419; died in 1423 |
| 1425 | 1444 | Risdeárd Ó Fearghail, O.Cist. | Elected before January 1425; appointed on 11 January 1425; consecrated after 25 May 1425; died c. June 1444 |
| 1444 | 1445 | (Mac Muircheartaigh) | Elected in 1444, but not consecrated; resigned in 1455; also known as MacMurtry |
| 1445 | c.1462 | Cormac Mác Shamhradháin, O.S.A. | Appointed on 6 November 1444; consecrated after 19 February 1445; resigned c. 1462 |
| 1462 | 1462 | Seaán Ó Fearghail | Appointed on 30 July, but blocked on 26 November 1462 |
| 1467 | 1469 | Donatus Ó Fearghail | Appointed on 12 October 1467; died before 28 July 1469 |
| 1467 | 1479 | Seaán Ó Fearghail (again) | Appointed (again) on 28 July 1469; died before 1479 |
| 1482 | 1516 | Uilliam Ó Fearghail, O.Cist. | Appointed on 4 August 1480 and consecrated on 11 August 1482; died in 1516 |
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## Bishops during the Reformation

Bishops of Ardagh during the Reformation :
| From | Until | Ordinary | Notes |
| 1517 | 1540 | Rory O'Malone | Known in Irish as Ruaidhrí Ó Máel Eóin; appointed by Pope Leo X on 14 December 1517; not known if he acknowledged Royal supremacy; died in 1540 |
| 1541 | 1553 | Richard Ó Fearghail | Nominated by King Henry VIII on 2 May 1541 and consecrated on 22 April 1542; died 1553 |
| 1541/53 | c.1572/75 | Patrick MacMahon, O.F.M. | Appointed by Pope Paul III on 14 November 1541 in opposition to Ó Fearghail; recognised sole bishop in 1553 when Ireland restored Papal supremacy in the reign of Queen Mary I, but after the accession of Queen Elizabeth I his position is uncertain; died c. 1572 or 1575 |
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## Post-Reformation bishops
### Church of Ireland succession

Church of Ireland Bishops of Ardagh :
| From | Until | Ordinary | Notes |
| 1572 | 1572 | (John Garvey) | Nominated on 6 November 1572, but never consecrated; later became Bishop of Kilmore in 1585, and Archbishop of Armagh in 1589 |
| 1572 | 1583 | See vacant | See vacant |
| 1583 | 1601 | Lysach Ó Fearghail | Nominated on 4 November 1583; died before 26 April 1601 |
| 1604 | 1633 | See part of the united bishopric of Kilmore and Ardagh | See part of the united bishopric of Kilmore and Ardagh |
| 1633 | 1654 | John Richardson, D.D. | Nominated on 8 April and consecrated in September 1633; also was Archdeacon of Derry 1622–34, then Archdeacon of Down 1639–54; left Ireland before the Rebellion of 1641; died in London on 11 August 1654 |
| 1654 | 1661 | See vacant | See vacant |
| 1661 | 1692 | See part of the united bishopric of Kilmore and Ardagh | See part of the united bishopric of Kilmore and Ardagh |
| 1692 | 1692 | Ulysses Burgh, D.D. | Previously Dean of Emly Cathedral; nominated bishop of Ardagh on 7 April and appointed by letters patent on 8 September 1692; consecrated at Christ Church Cathedral, Dublin on 11 September 1692; died later in the same year |
| 1693 | 1742 | See part of the united bishopric of Kilmore and Ardagh | See part of the united bishopric of Kilmore and Ardagh |
| 1742 | 1839 | See part of the Anglican archbishopric of Tuam | See part of the Anglican archbishopric of Tuam |
| 1839 | 1841 | See part of the united bishopric of Kilmore and Ardagh | See part of the united bishopric of Kilmore and Ardagh |
| since 1841 | since 1841 | See part of the united bishopric of Kilmore, Elphin and Ardagh. | See part of the united bishopric of Kilmore, Elphin and Ardagh. |
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### Roman Catholic succession

Roman Catholic Bishops of Ardagh :
| From | Until | Ordinary | Notes |
| c.1572/75 | 1576 | See vacant | See vacant |
| 1576 | 1580 | Richard Brady, O.F.M. | Appointed on 23 January 1576; translated to Kilmore on 9 March 1580 |
| 1581 | 1587 | Edmund MacGauran | Appointed on 11 September 1581; translated to Armagh on 1 July 1587 |
| 1580 | 1622 | See vacant | See vacant |
| 1622 | c.1637 | (John Gaffney) | Appointed Vicar Apostolic of Ardagh by papal brief 14 January 1622; died c. 1637 |
| 1637 | unknown | (Cornelius Gaffney) | Named Vicar General, but no record of a papal brief appointing him Vicar Apostolic; remained as vicar general during the episcopate of Patrick Plunket |
| 1647 | 1669 | Patrick Plunkett, O.Cist. | Appointed on 11 March 1647; consecrated in March 1648; left Ireland c. 1652 and did not return until 1664; translated to Meath on 11 January 1669 |
| 1669 | 1683 | (Gerard Farrell) | Appointed Vicar Apostolic of Ardagh by papal brief on 31 July 1669; died in June 1683 |
| 1688 | unknown | (Gregory Fallon) | Appointed Apostolic Administrator of Ardagh and Bishop of Clonmacnoise; proposed on 17 May 1688; appointed by papal brief on 1 July 1697; died c. 1698 |
| 1696 | unknown | (Charles Tiernan) | Appointed Vicar Apostolic of Ardagh by papal brief on 6 July 1696 |
| 1699 | unknown | (Bernard Donogher) | Appointed Vicar Apostolic of Ardagh by papal brief on 20 August 1699 |
| 1709 | 1711 | (Ambrose O'Conor O.P.) | Appointed Vicar Apostolic of Ardagh; proposed on 16 June 1709, but never consecrated; died on 20 February 1711 |
| 1718 | 1730 | Thomas Flynn | Appointed on 18 May 1718; consecrated on 15 July 1718; died on 29 January 1730 |
| 1730 | 1739 | Peter Mulligan, O.E.S.A. | Appointed in September 1730; papal brief on 9 May 1732; died on 23 July 1739 |
| 1739 | 1747 | Thomas O'Beirne | Appointed on 19 September 1739; died in February 1747 |
| 1747 | 1751 | Thomas MacDermot Roe | Appointed on 8 May 1747; died in February 1751 |
| 1751 | 1756 | Augustine Cheevers, O.S.A. | Appointed on 17 July 1751; translated to Meath on 7 August 1756 |
| since 1756 | since 1756 | See part of the united bishopric of Ardagh and Clonmacnoise | See part of the united bishopric of Ardagh and Clonmacnoise |
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