Texas Dionysius Ó Mórdha, Bishop of Clonfert, died 1534. References A New History of Ireland: Volume IX - Maps, Genealogies, Lists, ed. T.W. Moody, F.X. Martin, F.J. Byrne. Preceded byDavid de Burgo Bishops of Clonfert 1509–1534 Succeeded byRichard Nangle