Feastday: June 21 Aaron was a native of Britain. He went to Brittany, where he became a hermit on Cesabre (St. Malo) island. He attracted numerous disciples, among them St. Malo of Wales, and became their Abbot. For Saint Aaron of Caerleon, see Julius and Aaron. Aaron of Aleth (died after 552), also called Saint Aihran or Eran in Breton,Continue Reading