 Here a branch of the kindred seized territory and renamed it Uí Díarmata, after its founder, Diarmada Finn mac Tomaltaig, who was in turn a great-grandson of King Indrechtach mac Muiredaig (died 723).Cú Ceanain was a son of a previous king, Tadhg mac Muircheartach (died 971) but had not succeeded himself.A war between himself and the then king, Gillacommain mac Niall, brought about both their deaths in 991.