Irish Cistercian monk and abbot and bishop of Lismore. The confusing legends and traditions about him make it difficult to establish biographical details. It seems that he was born in Bangor (Ulster), and was the disciple and later archdeacon of Malachy. He stayed behind at Clairvaux when Malachy returned from Rome to Ireland, became a monk there under Bernard, and was chosen first abbot of Mellifont, Ireland's first Cistercian monastery, in 1142. He supported Malachy's policy of reforming the Irish Church and ruled the see of Lismore (1151–79); later he acted as papal legate. Feast: 18 March.
J. O'Hanlon, Lives of Irish Saints, iii. 839; B.T.A., i. 630.