sentences:  As for Coirpre, he is called a son of Niall in one of the earliest surviving sources, Tirechán's life of Saint Patrick.Medieval Irish traditions claimed that the lands of the Uí Néill were conquered by Niall of the Nine Hostages and his sons, together with their allies.Coirpre may have led some of the earliest recorded Uí Néill conquests in the midlands.