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Male Donnchadh Click to view Donnchadh in the family tree

1   Donnchadh's father was Murchadh King Of Leinster.  His paternal grandparents were Dermod King Of Leinster and Darbforgaill.  He was an only child.  He died in 1115 in Dublin.1 

Family Details of Donnchadh's family

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw