Cormac mac Ailill O'Dunlainge of Leinster

Cormac mac Ailill O'Dunlainge of was born in 0460.  Cormac mac Ailill O'Dunlainge of's father was Ailill macDunlainge of Leinster.  His paternal grandfather was Dunlaing macEndae Niae.  He was an only child.  He died at the age of 107 in 0567.

He had a biological son named Cairbre of.