Monarch | Dates of Reign |
| Niall Nogiallach (Niall of the Nine Hostages) | ???-453 |
| Loegaire | 454-463 |
| Allill Molt | 463-482 |
| Lugaid | 482-507 |
| Muirchertach | 507-536 |
| Tuathal Maelgarb | 536-544 |
| Diarmait I | 544-565 |
| Forggus and Domnall Iichelgach | 565-566 |
| Ainmire | 566-569 |
| Baetain I and Eochaid | 569-572 |
| Baetain II | 572-586 |
| Aed | 586-598 |
| Aed Slaine and Colman Rimid | 598-604 |
| Aed Uaridnach | 604-612 |
| Mael Cobo | 612-615 |
| Suibne Menn | 615-628 |
| Domnall | 628-623 |
| Cellach | 623-658 |
| Diarmait II and Blathmac | 658-666 |
| Sechussach | 666-671 |
| Cennfaelad | 671-675 |
| Finsnechta Fledach | 675-695 |
| Loingsech | 695-704 |
| Congal Cenmagair | 704-710 |
| Fergal | 710-722 |
| Fogartach | 722-724 |
| Cinaed | 724-728 |
| Flaithbertach | 728-734 |
| Aed Allan | 734-743 |
| Domnall Midi | 743-763 |
| Niall Frossach | 763-770 |
| Donnchad Midi | 770-797 |
| Aed Oirdnide | 797-819 |
| Conchobar | 819-833 |
| Niall Caille | 833-846 |
| Mael Sechnaill I | 846-862 |
| Aed Findliath | 862-879 |
| Flann Sinna | 879-916 |
| Niall Glundub | 916-919 |
| Donnchad Donn | 919-944 |
| Conglach Cnogba | 944-956 |
| Domnall ua Neill | 956-980 |
| Nael Sechnaill II | 980-1002 |
| Brian Boruma | 1002-1014 |
| Mael Sechnaill II | 1014-1022 |
| Interregnum | 1022-1072 |
| Toirrdelbach ua Briain | 1072-1086 |
| Muirchertach ia Briain | 1086-1119 |
| Domnall mac Lochlainn | 1119-1121 |
| Toirrdelbach ua Conchobair | 1121-1156 |
| Muirchertach mac Lochlainn | 1156-1166 |
| Ruaidhri ua Conchobair | 1166-1186 |