Saint-Brieuc Cathedral is a Roman Catholic church located in the town of Saint-Brieuc, Brittany, France, and dedicated to Saint Stephen.
The cathedral is the seat of the Bishop of Saint-Brieuc and Tréguier. It was declared a minor basilica on 3 September 1875. It is a listed monument historique since 1906.
Wikipedia https://en.wikipedia.org/wiki/Saint-Brieuc_Cathedral
Coordinates 48°30'51.072" N -2°45'50.009" E