St. Bertin, Religious
- Short biography.
- http://www.catholic.org/saints/saint.php?saint_id=27

Bertinus of Sithiu, OSB
- Biography claims that he was a Benedictine first, and later used the Rule of St. Columban in his own monastery.
- http://www.saintpatrickdc.org/ss/0905.htm#berc

Bertin
- Profile of the seventh-century monk.
- http://www.catholic-forum.com/saints/saintb26.htm

St. Bertin
- Monk living under the Rule of St. Columban, missionary to the Morini, monastic founder, abbot of St. Omer, d. about 709.
- http://www.newadvent.org/cathen/02522b.htm