 His feast day is celebrated on 5 March.He is sometimes called Saint Ciarán the Elder ( or "Ciaranus Maior") to distinguish him from the other 6th-century Irish Saint Ciarán, who was abbot of Clonmacnoise.He shares the feast date of 5 March with his mother, St. Liadán, and his disciple and episcopal successor, St. Carthach the Elder.