 Gofraid and Maccus are usually assumed to be members of the Uí Ímair, a kin group tracing its descent from Ímar (died 873), sometimes identified with the saga-character Ivar the Boneless.Their father Aralt or Harald is usually identified with the Aralt mac Sitric, king of Norse-Gael Limerick, who was killed in Connacht in 940.This identification would make Maccus and Gofraid nephews of Amlaíb Cuarán, the King of Dublin.