Uilliam Ó Fearghail (William O’Ferral; died 1516) was a Roman Catholic prelate:"Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 3" Cotton, H. p182 Dublin, Hodges & Smith, 1848-1878 he served as Bishop of Ardagh (1480–1516).GCatholic.org: "Diocese of Ardagh" retrieved January 30, 2016
Biography Uilliam Ó Fearghail was ordained a priest in the Order of Cistercians. On 4 Aug 1480, Uilliam Ó Fearghail was appointed by Pope Sixtus IV as Bishop of Ardagh. He was consecrated bishop on 11 August 1482. He served as Bishop of Ardagh until his death in 1516. While bishop, he served as principal co-consecrator of Michael Hildebrand, Archbishop of Riga (1484).
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