The High Kings of Medieval Ireland

[b][u]Kings of Ireland[/u][/b]

[b]1st High King: Máel Sechnaill mac Máele Ruanaid[/b] 
[u]Reigned:846-860 [/u]
[b]2nd High King:Áed Findliath[/b]
[u]Reigned:861-876 [/u]
[b]3rd High King:Flann Sinna[/b]
[u]Reigned:877-914[/u]
[b]4th High King:Niall Glúndub[/b]
[u]Reigned:915-917[/u]
[b]5th High King:Donnchad Donn[/b]
[u]Reigned:918-942[/u]
[b]6th High King:Congalach Cnogba[/b]
[u]Reigned:943-954[/u]
[b]7th High King:Domnall ua Néill[/b]
[u]Reigned:955-978[/u]
[b]8th High King:Máel Sechnaill mac Domnaill[/b]
[u]Reigned:979-1002,Restored 1014-1022[/u]
[b]9th High King:Brian Bóruma[/b]
[u]Reigned: 1002-1014[/u]
[b]10th High King:Donnchad mac Briain[/b]
[u]Reigned: Somewhere around 1064[/u]
[b]11th High King:Diarmait mac Maíl na mBó[/b] 
[u]Reigned: Somewhere around 1072[/u]
[b]12th High King:Toirdelbach Ua Briain[/b]
[u]Reigned: Somewhere around 1086 [/u]
[b]13th High King:Domnall Ua Lochlainn[/b]
[u]Reigned: Somewhere around 1121[/u]
[b]14th High King:Toirdelbach Ua Conchobair[/b]
[u]Reigned:1121-1156[/u]
[b]15th High King:Muirchertach Mac Lochlainn[/b]
[u]Reigned:1156-1166[/u]
[b]16th High King:Ruaidrí Ua Conchobair[/b]
[u]Reigned:1166-1198[/u]