d.661. Second bishop of Lindisfarne, where he succeeded Aidan* in 652. He worked with Oswy, king of Northumbria, for the conversion of the country to Christianity of the Celtic or Irish type. Intensely missionary in his outlook, he sought to bring the Gospel to people beyond the borders of Northumbria, and did so with such success that he baptized both the kings of the East Saxons and Mercia. In the controversy with the Roman Church over the date of Easter he took the side of the Celtic tradition, but died before the matter was finally settled in favor of Rome by Oswy at the (663/4).