Saint Columba, abbot of Iona

Saint Columba, abbot of Iona, was an Irish missionary monk born around 521 AD. He is renowned for founding the famous monastery on the island of Iona, Scotland, which became a center of Celtic Christianity. Columba evangelized the Picts and played a key role in spreading the Christian faith in Scotland. He is remembered for his holiness, leadership, and contributions to monastic culture.