Muirchertach Mór ua Briain   (a.k.a. Muircheartach)   (m)   c. 1050-1119  
Irish Kings   1101-1119
Muirchertach mac Lochlainn   (a.k.a. Muircheartach)   (m)   ?-1166  
Irish Kings   1156-1166
Muirchertach mac Muiredaig   (a.k.a. Muircheartach)   (m)   ?-c. 534  
Irish Kings   507-534