Caisleán Ó Liatháin

Castlelyons derives its name from a stronghold of the Uí Liatháin, an early medieval Gaelic dynasty that dominated much of present-day Barrymore barony in Cork. The name preserves the legacy of this kingdom, combining the Irish caisleán (castle) with Ó Liatháin, the dynastic name. Following the Norman invasion of Ireland, the Cambro-Norman knight Philip de Barry acquired control of the Uí Liath...