Aodh Ua Beacháin (died 1188)"Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 1" Cotton, H. p432. Dublin, Hodges & Smith, 1848–1878 was Bishop of Iniscathay""The diocesan history of Killaloe, Kilfenora, Clonfert, and Kilmacduagh (AD 639 – AD 1886)" Cooke, E.A p17: Dublin, E.Ponsonby, 1886 in the late 12th century."A New History of Ireland" T. W. Moody, F. X. Martin, F.J. Byrne and Cosgrove, A: Oxford, OUP, 1976
The surname is now rendered Behan
References