Muintear Mhaolmordha
MUINTEAR MHAOLMORDHA, family of Maolmordha, the 14th in descent from Duach Galach, son of Brion, son of Eochaidh Muighmheadhoin, King of Ireland; a branch of the Ui Briuin, which see; the clan-name of the O'Reillys in Co. Cavan.
Alphabetical Index to Irish Surnames