Irish saint, one of the 'Three Apostles of Ireland' alongside St. Patrick and St. Brigid. He founded the famous monastery of Iona in Scotland and was the missionary who converted the Picts (Scotland) to Christianity. His prophetic verses, known as 'Columcille's Prophecy', contain remarkably accurate predictions about English rule over Ireland, the decline of faith, and signs of the end times. Canonized saint in both Catholic and Orthodox traditions.