The genealogy of Saint Kerrill of Cloonkeenkerrill is given as Caireall mac Curnain mac Treana mac Fionnchada mac Nair mac Earca mac Tiobraide mac Sodhain Salbhuidhe mac Fiacha Araidhe. His grandfather, Treana mac Fionnchada, was the eponym of the Cinel Trena, who were apparently located close to Knockma as evinced by the placename Tír Mhic Trena (the land of the sons of Trena). This area was the western limit of the kingdom of the Connacht Soghain.