Irish abbot, a disciple of Sts. Colman and Mochae also called Winin. He was born in Strangford, Lough, Ulster, in Ireland, a member of a royal family. Studying under Sts. Colman and Mochae, he became a monk in Strathclyde and was ordained in Rome. Returning to Ulster, Finian founded several monasteries, becoming abbot of Moville, in County Down, Ireland. He became embroiled with St. Columba, a student, over a copy of St. Jerome’s Psalter, and St. Columba had to surrender that copy to Finian. He also founded Holywood and Dumfries in Scotland. Finian was known for miracles, including moving a river.
From Catholic Online