Notes:
He asked Richard Strongbow de Clare (and others including William Gerard, etc) to help him in Ireland. That was the beginning of the Norman Conquest of Ireland.
Diarmait married Cacht O'Moore. Cacht was born about 1135 in Leinster, Ireland. [Group Sheet] [Family Chart]
Donnchadh married Orlaith MacBranain. Orlaith was born in 1080 in Ireland. [Group Sheet] [Family Chart]