Wiro, Saint an Irish prelate, was born in the county of Clare, and was at an early period of life elected bishop of Dublin. He went to Rome and was consecrated by the pope. He governed this see some time, and gained a high reputation on account of his sanctity. He finally resigned his bishopric and went to Gaul. He built an oratory at Mons Petri, which he dedicated to the Blessed Virgin, and called it St. Peter's Monastery. He died May 8, on which day his festival is observed. See D'Alton, Memoirs of the Archbishops of Dublin, page 18.