Texas Uilliam Ó Dubhda was Bishop of Killala from 1346 to 1350.[1] References ^ Fryde, E.B.; Greenway, D.E. (1996). Handbook of British chronology. Cambridge UP. p. 359. ISBN 9780521563505. Catholic Church titles Preceded byJames Bermingham Bishop of Killala 1346–1350 Succeeded byRobert Elyot