The Kings of Connacht were rulers of the cóiced (variously translated as portion, fifth, province) of Connacht, which lies west of the River Shannon, Ireland. However, the name only became applied to it in the early medieval era, being named after the Connachta.
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The old name for the province was Cóiced Ol nEchmacht (the fifth of the Ol nEchmacht). Ptolemy's map of c. 150 AD does in fact list a people called the Nagnatae as living in the west of Ireland. Some are of the opinion that Ptolemy's Map of Ireland may be based on cartography carried out as much as five hundred years before his time.
The Connachta were a group of dynasties who claimed descent from the three eldest sons of Eochaid Mugmedon: Brion, Ailill and Fiachrae. They took their collective name from their alleged descent from Conn Cétchathach. Their younger brother, Niall Noigiallach was ancestor to the Uí Néill.
The following is a list of kings of Connacht from the fifth to fifteenth centuries.
- Genann
- Conrac Cas
- Eochaid Feidlech
- Eochaidh Allat
- Tinni mac Conri
- Medb, Queen of Connacht
- Medb and Ailill mac Máta
- Maine Aithreamhail mac Ailill Máta
- Sanbh Sithcheann mac Ceat mac Magha
- Cairbre mac Maine Aithreamhail
- Eochaidh Fionn
- Aodh mac Cu Odhar
- Eochaidh mac Cairbre
- Aonghus Fionn mac Domhnall
- Cormac Ulfhada
- Aonghus Feirt mac Aonghus Fionn
- Connall Cruchain mac Aonghus Feirt
- Fearadach mac Connal Cruchain
- Forghus Fiansa
- Forghus Fiansa and Art mac Conn
- Ceidghin Cruchain mac Connall Cruchain
- Aodh mac Eochaidh
- Aodh Alainn mac Eochaidh Baicidh
- Nia Mór mac Lughna
- Lughaidh mac Lughna Fear Tri
- Aodh Caomh mac Garadh Glundubh
- Coinne mac Fear Tri
- Muireadh Tireach mac Fiachra Sraibrintne
- Eochaid Mugmedon
- Niall Noigiallach/Niall of the Nine Hostages, died c. 450/455
Uí Fiachrach, 406–482
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Uí Briúin, 482–500
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Uí Fiachrach, 500–549
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Uí Briúin, 549–600
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Uí Fiachrach Aidhne, 600–622
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Uí Briúin, 622–649
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Uí Fiachrach Aidhne, 649–663
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Uí Briúin Seóla, 663–682
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Uí Fiachrach Muaidhe, 682–683
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Name | Reign | Clan Arms | Parentage | Death |
Dúnchad Muirisci | 682–683 | ![](//upload.wikimedia.org/wikipedia/commons/thumb/7/74/O%27Dowd.png/36px-O%27Dowd.png) | Son of Tipraite mac Máel Dubh | 683 |
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Uí Fiachrach Aidhne, 683–696
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Uí Briúin Síl Muiredaig, 696–702
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Uí Briúin Síl Cellaig, 702–705
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Uí Fiachrach Muaidhe, 705–707
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Uí Briúin Síl Muiredaig, 707–723
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Uí Briúin Síl Cellaig, 723–728
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Uí Briúin Síl Cathail, 728–735
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Uí Briúin Síl Muiredaig, 735–742
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Uí Briúin Síl Cellaig, 742–756
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Uí Fiachrach Muaidhe, 756–764
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Uí Briúin Síl Cathail, 764–768
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Uí Fiachrach Muaidhe, 768–773
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Uí Briúin Síl Cellaig, 773–777
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Uí Briúin Síl Cathail, 777–782
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Uí Briúin Síl Muiredaig, 782–786
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Uí Briúin Síl Cathail, 786–792
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Uí Briúin Síl Cellaig, 792–796
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Uí Briúin Síl Muiredaig, 796–839
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Uí Briúin Síl Cathail, 839–843
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Uí Briúin Síl Muiredaig, 843–848
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Uí Briúin Síl Cathail, 848–872
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Uí Briúin Síl Muiredaig, 872–956
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Ó Ruairc, 956–967
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Ó Conchobhair, 967–1030
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Ó Ruairc, 1030–1046
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Ó Conchobhair, 1046–1067
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Ó Ruairc, 1067–1087
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Ó Conchobhair, 1087–1092
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Ó Flaithbheartaigh, 1092–1095
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Ó Conchobhair, 1092–1097
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Ó Ruairc, 1097–1102
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Name | Reign | Clan Arms | Parentage | Death |
Domnall Ua Ruairc | 1097–1102 | ![](//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/O%27Rourke_Arms.svg/34px-O%27Rourke_Arms.svg.png) | Son of Tigernán mac Ualgharg | 1102 |
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Ó Conchobhair, 1102–1280
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Muircheartaigh Uí Conchobhair, 1280–1293
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Ó Conchobhair, 1293–1309
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Name | Reign | Clan Arms | Parentage | Death |
Aedh Ó Conchobair | 1293–1309 | ![](//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/O%27Conor.png/34px-O%27Conor.png) | Son of Eoghan mac Ruaidri Ó Conchobair | 1309 |
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Muircheartaigh Uí Conchobhair, 1309–1310
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Ó Conchubhair Ruadh, 1310–1317
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Ó Conchobhair, 1316–1317
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Ó Conchubhair Donn, 1317–1350
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Ó Conchobhair Sligigh, 1318–1324
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Muircheartaigh Uí Conchobhair, 1342–1350
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Ó Conchubhair Donn, 1368–1474
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- Annals of the Four Masters, 1990 edition.
- The Annals of Connacht, A. Martin Freeman, 1944.
- Irish Kings and High Kings, Francis John Byrne, 1973.
- Leabhar Mor Genealach, Dubhaltach MacFhirbhisigh, ed. O'Muralie, 2004.