In Celtic religion , the leader of one of the two warring families of the gods.
According to one interpretation, the Children of Llyr were the powers of darkness, constantly in conflict with the Children of Dôn, the powers of light. In Welsh tradition, Llyr and his son Manawydan were associated with the sea. Llyr's other children included Brân , Creidylad, and Branwen, wife of the sun god Matholwch, king of Ireland.