Wikipedia
O'Carroll
O'Carroll , also known as simply Carroll or Carrell, is a Gaelic Irish clan which is the most prominent sept of the Ciannachta (also known as Clan Cian). Their genealogies claim that they are kindred with the Eóganachta (themselves led by the MacCarthys), descended paternally from Ailill Aulom. During the Middle Ages until 1552, the family ruled an area within the Kingdom of Munster known as Éile. The last monarch Tiege Caoc O'Carroll surrendered and regranted to the Tudor Kingdom of Ireland.