The Roman Catholic Archdiocese of Besançon is a Latin Rite Roman Catholic ecclesiastical territory in France. It comprises the département of Doubs and the département of Haute-Saône, except for the canton of Héricourt.
The see is currently sede vacante.
From 1034 the archbishop had civil authority within the Holy Roman Empire as the prince-archbishop of Besançon. He gradually lost his civil power to the town council; the city became the Imperial city of Besançon in 1184. The city was annexed by France in stages, eventually being fully subsumed in 1792 by it during the French Revolution.
Wikipedia https://en.wikipedia.org/wiki/Roman_Catholic_Archdiocese_of_Besançon
Coordinates 47°24'11.173" N 6°10'36.397" E