# List of monarchs of Thomond

The kings of Thomond (Irish: Rí Tuamhain) ruled from the establishment of Thomond during the High Middle Ages, until the Early modern period. Thomond represented the legacy of Brian Bóruma and the High Kings of Ireland of his line who could not hold onto all of Munster, so had to partition the realm between themselves and Desmond, ruled by their rivals the Eóganachta. The Kings of Thomond were drawn from the leading kindred of the Dál gCais known as the Ó Briain. For centuries they fought off challenges from the Normans, including the de Clare family and internal conflict between factions. Eventually Murchadh Carrach Ó Briain decided to surrender and regrant his realm to the Kingdom of Ireland in 1543 and accepted the titles Baron Inchiquin and Earl of Thomond. These titles were recently held by Conor Myles John O'Brien (d.2023)

## Kings of Thomond
### Ó Briain, 1118–1277

| Name | Birth | Marriage(s) | Death |
| Conchobhar Ó Briain 1118–1142 | Son of Diarmuid Ó Briain | unknown | 1142 |
| Toirdhealbhach mac Diarmada Ua Briain 1142–1167 | Son of Diarmuid Ó Briain | unknown | 1167 |
| Muircheartach mac Toirdelbhach Ó Briain 1167–1168 | Son of Toirdelbhach mac Diarmaida Ó Briain | unknown | 1168 |
| Domhnall Mór Ó Briain 1168–1194 | Son of Toirdelbhach mac Diarmaida Ó Briain | Orlacan Ní Murchada Four children | 1194 |
| Muircheartach Dall Ó Briain 1194–1198 1203–1210 | Son of Domhnall Mór Ó Briain and Orlacan Ní Murchada | unknown | 1210 |
| Conchobhar Ruadh Ó Briain 1198–1203 | Son of Domhnall Mór Ó Briain and Orlacan Ní Murchada | unknown | 1203 |
| Donnchadh Cairbreach Ó Briain 1210–1242 | Son of Domhnall Mór Ó Briain and Orlacan Ní Murchada | unknown | 1242 |
| Conchobhar na Suidaine Ó Briain 1242–1268 | Son of Donnchadh Cairbreach Ó Briain | unknown | 1268 |
| Brian Ruadh Ó Briain 1268–1276 1277 | Son of Conchobhar na Suidaine Ó Briain | unknown | 1277 |

### Ó Briain Clann Tadhg, 1276–1311

| Name | Portrait | Birth | Marriage(s) | Death |
| Toirdhealbhach Mór Ó Briain 1276–1306 | | Son of Tadhg Cael Uisce Ó Briain | unknown | 1306 |
| Donnchadh mac Toirdelbach Ó Briain 1306–1311 | | Son of Toirdelbach Ó Briain | unknown | 1311 |

### Ó Briain Clann Briain Ruadh, 1277–1284

| Name | Portrait | Birth | Marriage(s) | Death |
| Donnchadh mac Brian Ruadh Ó Briain 1277–1284 (claimant) | | Son of Brian Ruadh Ó Briain | unknown | 1284 |

### Ó Briain Clann Briain Ruadh, 1311–1317

| Name | Portrait | Birth | Marriage(s) | Death |
| Diarmuid Cléirech Ó Briain 1311–1313 | | Son of Donnchadh mac Brian Ruadh Ó Briain | unknown | 1313 |
| Donnchadh mac Domhnall Ó Briain 1313–1317 | | Son of Domhnall mac Brian Ruadh Ó Briain and Mairéad Nic Mathghamhna | unknown | 1317 |

### Ó Briain Clann Tadhg, 1317–1343

| Name | Portrait | Birth | Marriage(s) | Death |
| Muircheartach Ó Briain 1317–1343 | | Son of Toirdhealbhach Mór Ó Briain | Éadaoin Nic Gormáin Several children | 1343 |

### Ó Briain Clann Briain Ruadh, 1343–1350

| Name | Portrait | Birth | Marriage(s) | Death |
| Brian Bán Ó Briain 1343–1350 | | Son of Domhnall mac Brian Ruadh Ó Briain and Mairéad Nic Mathghamhna | unknown | 1350 |

### Ó Briain Clann Tadhg, 1350–1543

| Name | Birth | Marriage(s) | Death |
| Diarmuid mac Toirdelbach Ó Briain 1350–1360 | Son of Toirdelbach Ó Briain | unknown | 1360 |
| Mathghamhain Maonmhaighe Ó Briain 1360–1369 | Son of Muircheartach Ó Briain and Éadaoin Nic Gormáin | Úna Ní Conchubhair Several children | 1369 |
| Brian Sreamhach Ó Briain 1369–1400 | Son of Mathghamhain Maonmhaighe Ó Briain and Úna Ní Conchubhair | Sláine Nic Con Mara Several children | 1400 |
| Toirdelbhach Maol Ó Briain 1375–1398 (claimant) | Son of Muircheartach Ó Briain and Éadaoin Nic Gormáin | unknown | 1398 |
| Conchobhar mac Mathghamhna Ó Briain 1400–1426 | Son of Mathghamhain Maonmhaighe Ó Briain and Úna Ní Conchubhair | unknown | 1426 |
| Tadhg an Glemore Ó Briain 1426–1438 | Son of Brian Sreamhach Ó Briain and Sláine Nic Con Mara | unknown | 1438 |
| Mathghamhain Dall Ó Briain 1438–1444 | Son of Brian Sreamhach Ó Briain and Sláine Nic Con Mara | unknown | 1444 |
| Toirdhealbhach Bóg Ó Briain 1444–1459 | Son of Brian Sreamhach Ó Briain and Sláine Nic Con Mara | Catherine Burke Several children | 1459 |
| Tadhg an Chomhaid Ó Briain 1459–1466 | Son of Toirdhealbhach Bóg Ó Briain and Catherine Burke | Annabella Burke Several children | 1466 |
| Donnchadh mac Mathghamhna Ó Briain 1459–1461 (claimant) | Son of Mathghamhain Dall Ó Briain | unknown | 1461 |
| Conchobhar na Srona Ó Briain 1466–1496 | Son of Toirdhealbhach Bóg Ó Briain | unknown | 1496 |
| Toirdelbhach Óg Ó Briain 1496–1498 | Son of Toirdhealbhach Bóg Ó Briain and Catherine Burke | unknown | 1498 |
| Toirdhealbhach Donn Ó Briain 1498–1528 | Son of Tadhg an Chomhaid Ó Briain and Annabella Burke | Raghnailt Nic Con Mara Several children Joan FitzMaurice Several children | 1528 |
| Conchobhar mac Toirdhealbaig Ó Briain 1528–1539 | Son of Toirdelbhach Donn Ó Briain and Raghnailt Mac Con Mara | unknown | 1539 |
| Murchadh Carrach Ó Briain 1539–1543 | Son of Toirdelbhach Donn Ó Briain and Raghnait MacNamara | Eleanor FitzGerald | 1551 |

## Line of Kings

Kings of Thomond :
| | | | | 976-1014 Brian Bórumha Ua Briain | 976-1014 Brian Bórumha Ua Briain | 976-1014 Brian Bórumha Ua Briain | 976-1014 Brian Bórumha Ua Briain | 976-1014 Brian Bórumha Ua Briain | 976-1014 Brian Bórumha Ua Briain | | | | | | | | | | | | | | | | | | | | |
| 1014-1063 Donnchad | 1014-1063 Donnchad | 1014-1063 Donnchad | 1014-1063 Donnchad | 1014-1063 Donnchad | 1014-1063 Donnchad | | | Tadhg | Tadhg | Tadhg | Tadhg | Tadhg | Tadhg | | | | | | | | | | | | | | | | | | |
| 1063-1068 Murchad | 1063-1068 Murchad | 1063-1068 Murchad | 1063-1068 Murchad | 1063-1068 Murchad | 1063-1068 Murchad | | | 1068-1086 Toirdhealbhach | 1068-1086 Toirdhealbhach | 1068-1086 Toirdhealbhach | 1068-1086 Toirdhealbhach | 1068-1086 Toirdhealbhach | 1068-1086 Toirdhealbhach | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 1086 Tadhg | 1086 Tadhg | 1086 Tadhg | 1086 Tadhg | 1086 Tadhg | 1086 Tadhg | | | 1114-1115 Diarmaid | 1114-1115 Diarmaid | 1114-1115 Diarmaid | 1114-1115 Diarmaid | 1114-1115 Diarmaid | 1114-1115 Diarmaid | | | 1086-1114 1115-1119 Muircheartach | 1086-1114 1115-1119 Muircheartach | 1086-1114 1115-1119 Muircheartach | 1086-1114 1115-1119 Muircheartach | 1086-1114 1115-1119 Muircheartach | 1086-1114 1115-1119 Muircheartach | | | | | | | | | | | | |
| 1115 Domhnall | 1115 Domhnall | 1115 Domhnall | 1115 Domhnall | 1115 Domhnall | 1115 Domhnall | | | 1142–1151 1154-1167 Toirdhealbhach | 1142–1151 1154-1167 Toirdhealbhach | 1142–1151 1154-1167 Toirdhealbhach | 1142–1151 1154-1167 Toirdhealbhach | 1142–1151 1154-1167 Toirdhealbhach | 1142–1151 1154-1167 Toirdhealbhach | | | | | | | | | 1119-1142 Conchubhar na Cathrach | 1119-1142 Conchubhar na Cathrach | 1119-1142 Conchubhar na Cathrach | 1119-1142 Conchubhar na Cathrach | 1119-1142 Conchubhar na Cathrach | 1119-1142 Conchubhar na Cathrach | 1143 1151-1154 Tadhg | 1143 1151-1154 Tadhg | 1143 1151-1154 Tadhg | 1143 1151-1154 Tadhg | 1143 1151-1154 Tadhg | 1143 1151-1154 Tadhg | | | | | | |
| Conchubhar | Conchubhar | Conchubhar | Conchubhar | Conchubhar | Conchubhar | | | 1168-1194 Domhnall Mór | 1168-1194 Domhnall Mór | 1168-1194 Domhnall Mór | 1168-1194 Domhnall Mór | 1168-1194 Domhnall Mór | 1168-1194 Domhnall Mór | | | 1167-1168 Muircheartach | 1167-1168 Muircheartach | 1167-1168 Muircheartach | 1167-1168 Muircheartach | 1167-1168 Muircheartach | 1167-1168 Muircheartach | Muircheartach | Muircheartach | Muircheartach | Muircheartach | Muircheartach | Muircheartach | Diarmaid | Diarmaid | Diarmaid | Diarmaid | Diarmaid | Diarmaid | | | | | | |
| 1194 Muircheartach Dall | 1194 Muircheartach Dall | 1194 Muircheartach Dall | 1194 Muircheartach Dall | 1194 Muircheartach Dall | 1194 Muircheartach Dall | | | 1198-1242 Donnchadh Cairbreach | 1198-1242 Donnchadh Cairbreach | 1198-1242 Donnchadh Cairbreach | 1198-1242 Donnchadh Cairbreach | 1198-1242 Donnchadh Cairbreach | 1198-1242 Donnchadh Cairbreach | | | 1198 Conchubhar Ruadh | 1198 Conchubhar Ruadh | 1198 Conchubhar Ruadh | 1198 Conchubhar Ruadh | 1198 Conchubhar Ruadh | 1198 Conchubhar Ruadh | | | | | | | | | | | | | | |
| | | | | | | | | 1242-1268 Conchubhar na Siudane | 1242-1268 Conchubhar na Siudane | 1242-1268 Conchubhar na Siudane | 1242-1268 Conchubhar na Siudane | 1242-1268 Conchubhar na Siudane | 1242-1268 Conchubhar na Siudane | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | Tadhg Cael Uisce Clann Tadhg | Tadhg Cael Uisce Clann Tadhg | Tadhg Cael Uisce Clann Tadhg | Tadhg Cael Uisce Clann Tadhg | Tadhg Cael Uisce Clann Tadhg | Tadhg Cael Uisce Clann Tadhg | | | | | | | | | 1268-1277 Brian Ruadh Clann Briain | 1268-1277 Brian Ruadh Clann Briain | 1268-1277 Brian Ruadh Clann Briain | 1268-1277 Brian Ruadh Clann Briain | 1268-1277 Brian Ruadh Clann Briain | 1268-1277 Brian Ruadh Clann Briain | | | | |
| | | | | | | | | 1276-1306 Toirdhealbhach Mór | 1276-1306 Toirdhealbhach Mór | 1276-1306 Toirdhealbhach Mór | 1276-1306 Toirdhealbhach Mór | 1276-1306 Toirdhealbhach Mór | 1276-1306 Toirdhealbhach Mór | | | | | | | | | Donnchadh | Donnchadh | Donnchadh | Donnchadh | Donnchadh | Donnchadh | Domhnaill | Domhnaill | Domhnaill | Domhnaill | Domhnaill | Domhnaill | | | | | | |
| 1306-1311 Donnchadh | 1306-1311 Donnchadh | 1306-1311 Donnchadh | 1306-1311 Donnchadh | 1306-1311 Donnchadh | 1306-1311 Donnchadh | | | 1317-1343 Muircheartach | 1317-1343 Muircheartach | 1317-1343 Muircheartach | 1317-1343 Muircheartach | 1317-1343 Muircheartach | 1317-1343 Muircheartach | | | 1350–1360 Diarmaid | 1350–1360 Diarmaid | 1350–1360 Diarmaid | 1350–1360 Diarmaid | 1350–1360 Diarmaid | 1350–1360 Diarmaid | 1311-1313 Diarmaid | 1311-1313 Diarmaid | 1311-1313 Diarmaid | 1311-1313 Diarmaid | 1311-1313 Diarmaid | 1311-1313 Diarmaid | 1313-1317 Donnchadh | 1313-1317 Donnchadh | 1313-1317 Donnchadh | 1313-1317 Donnchadh | 1313-1317 Donnchadh | 1313-1317 Donnchadh | 1343-1350 Brian Bán | 1343-1350 Brian Bán | 1343-1350 Brian Bán | 1343-1350 Brian Bán | 1343-1350 Brian Bán | 1343-1350 Brian Bán |
| | | | | | | | | 1360–1369 Mathgamain Maonmhaighe | 1360–1369 Mathgamain Maonmhaighe | 1360–1369 Mathgamain Maonmhaighe | 1360–1369 Mathgamain Maonmhaighe | 1360–1369 Mathgamain Maonmhaighe | 1360–1369 Mathgamain Maonmhaighe | | | 1375–1398 (claimant) Toirdhealbhach Maol | 1375–1398 (claimant) Toirdhealbhach Maol | 1375–1398 (claimant) Toirdhealbhach Maol | 1375–1398 (claimant) Toirdhealbhach Maol | 1375–1398 (claimant) Toirdhealbhach Maol | 1375–1398 (claimant) Toirdhealbhach Maol | | | | | | |
| | | | | | | | | 1369–1400 Brian Sreamhach | 1369–1400 Brian Sreamhach | 1369–1400 Brian Sreamhach | 1369–1400 Brian Sreamhach | 1369–1400 Brian Sreamhach | 1369–1400 Brian Sreamhach | | | 1400-1426 Conchubhar | 1400-1426 Conchubhar | 1400-1426 Conchubhar | 1400-1426 Conchubhar | 1400-1426 Conchubhar | 1400-1426 Conchubhar | | | | | | |
| 1426–1438 Tadhg an Glemore | 1426–1438 Tadhg an Glemore | 1426–1438 Tadhg an Glemore | 1426–1438 Tadhg an Glemore | 1426–1438 Tadhg an Glemore | 1426–1438 Tadhg an Glemore | | | 1444-1459 Toirdhealbhach Bóg | 1444-1459 Toirdhealbhach Bóg | 1444-1459 Toirdhealbhach Bóg | 1444-1459 Toirdhealbhach Bóg | 1444-1459 Toirdhealbhach Bóg | 1444-1459 Toirdhealbhach Bóg | | | | | | | | | 1438-1444 Mathgamain Dall | 1438-1444 Mathgamain Dall | 1438-1444 Mathgamain Dall | 1438-1444 Mathgamain Dall | 1438-1444 Mathgamain Dall | 1438-1444 Mathgamain Dall | | | | |
| 1496-1498 Toirdhealbhach Óg | 1496-1498 Toirdhealbhach Óg | 1496-1498 Toirdhealbhach Óg | 1496-1498 Toirdhealbhach Óg | 1496-1498 Toirdhealbhach Óg | 1496-1498 Toirdhealbhach Óg | | | 1459-1466 Tadhg an Chomhaid | 1459-1466 Tadhg an Chomhaid | 1459-1466 Tadhg an Chomhaid | 1459-1466 Tadhg an Chomhaid | 1459-1466 Tadhg an Chomhaid | 1459-1466 Tadhg an Chomhaid | | | 1466-1496 Conchubhar na Srona | 1466-1496 Conchubhar na Srona | 1466-1496 Conchubhar na Srona | 1466-1496 Conchubhar na Srona | 1466-1496 Conchubhar na Srona | 1466-1496 Conchubhar na Srona | 1459-1461 (claimant) Donnchadh | 1459-1461 (claimant) Donnchadh | 1459-1461 (claimant) Donnchadh | 1459-1461 (claimant) Donnchadh | 1459-1461 (claimant) Donnchadh | 1459-1461 (claimant) Donnchadh |
| | | | | | | | | 1498-1528 Toirdhealbhach Donn | 1498-1528 Toirdhealbhach Donn | 1498-1528 Toirdhealbhach Donn | 1498-1528 Toirdhealbhach Donn | 1498-1528 Toirdhealbhach Donn | 1498-1528 Toirdhealbhach Donn | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | 1528–1539 Conchubhar | 1528–1539 Conchubhar | 1528–1539 Conchubhar | 1528–1539 Conchubhar | 1528–1539 Conchubhar | 1528–1539 Conchubhar | | | 1539–1543 Murchadh Carrach Last King of Thomond | 1539–1543 Murchadh Carrach Last King of Thomond | 1539–1543 Murchadh Carrach Last King of Thomond | 1539–1543 Murchadh Carrach Last King of Thomond | 1539–1543 Murchadh Carrach Last King of Thomond | 1539–1543 Murchadh Carrach Last King of Thomond | | | | | | |