Moved from Britain to Brittany to become the spiritual student of his uncle Saint Paul Aurelian. Monk at Landevennec, Brittany (in modern France). Co-adjutor bishop with, and successor to Saint Paul. At least two churches in Brittany are dedicated to him.
- 6th century Romano-Briton
- Book of Saints, by the Monks of Ramsgate
- Celtic Saints
- Heiligen 3s
- Lives of the Saints, by Father Alban Butler
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Joavan of Brittany“. Saints.SQPN.com. 20 February 2014. Web. 30 January 2015. <>