- Archdiocese of Rennes-Dol-Saint-Malo
Expanded by the addition of territory from the Archdiocese of Dol, France, the Diocese of Saint-Malo, France and the Diocese of Tréguier, France on 29 November 1801; they had all been suppressed during the anti-Catholic excesses of the French Revolution. Name changed to Saint-Brieuc-Tréguier on 23 January 1852.
- “Diocese of Saint-Brieuc-Tréguier, France“. CatholicSaints.Info. 29 July 2016. Web. 25 September 2016. <>