He was one of three sons of Illulb mac Custantín, King of Alba, and a member of Clann Áeda meic Cináeda, a branch of the Alpínid dynasty.
One of the three sons of Illulb mac Custantín, ruler of Alba, was part of the Clann Áeda meic Cináeda clan, a subgroup of the powerful Alpínid family.