Aedan was the son of Eithne and Sedna, chief of Connaught, Ireland. A widespread reputation for sanctity brought him potential disciples in his youth; he fled to Kilmuine, Wales to escape them. He was a disciple of Saint David. He returned to Ireland in 580 with a group of disciples, including Saint Caillan, settling at Brentrocht, Leinster. Established 30 churches and several monasteries in the area, including Ferns in Wexford, on land given him by King Brandubh of Leinster. He was named the first bishop of Ferns around 598. He retired to live as a prayerful monk, dying in 632.