A convert, he was baptized by and became a spiritual student of Saint Colman. Monk. Trained as an evangelist by Saint Diomma of Kildimo. Worked in Ireland before the arrival of Saint Patrick. Pilgrim to Rome, Italy. First bishop of Ardmore, Waterford, Ireland. Known as a miracle worker.
- Book of Saints, by the Monks of Ramsgate
- Catholic Online
- Life of Saint Declan of Ardmore
- Lives of the Saints, by Father Alban Butler
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Declan of Ardmore“. Saints.SQPN.com. 11 November 2013. Web. 16 April 2014. <>