(2) The Ó Donnchadha of Desmond, from the Eóganacht Raithlind, related to the O'Mahonys, prominent in County Kerry and referred to as "O'Donoghue Mór."
(3) The Ó Donnchadha of Osraige, from the Clann Conla, related to the Mac Giolla Phádraig dynasty ("the Fitzpatricks") and produced some kings of Osraige, prominent in County Kilkenny and commonly anglicised as Dunphy.