Ó Beigleighinn
Ó BEIGLEIGHINN—III—O Begleyn, Beglin, Beglan, (Begnall), &c.; 'descendant of the little scholar' (Irish beagléighinn; the name of a medical family in Longford, Leitrim and Sligo; also Ó Bigléighinn, which see.
Alphabetical Index to Irish Surnames