The descendants of Aed’s eldest son, Urb, eventually founded the Kingdom of Brycheiniog, while his younger son, Triffyn Farfog, married the heiress of the Dyfed Kings. Like most Irish Royalty, Eochaid claimed descent from Belenos, the Celtic Sun-God, through his son, Miled. The Sons of Miled were traditionally the first Celts to come to Ireland, driving the Old Gods into the Otherworld and founding the Milesian dynasty of Irish Kings.