The Basilica of St. Ferjeux is situated in Besançon, in the quartier of Saint-Ferjeux. It is dedicated to the patron saints of Besançon, Ferreolus and Ferrutio.
Wikipedia https://en.wikipedia.org/wiki/Basilica_of_Saint-Ferjeux
Address 24 Rue de la Basilique, Besançon 25000, France
Coordinates 47°13'57.985" N 5°59'21.252" E