La Rochelle
The medieval bishoprics
| ABRINCENSIS (Avranches - Manche) | Doubtless created in the fourth century. |
| ADURENSIS (Aire-sur-l'Adour - Landes) | Attested at the beginning of the sixth century. |
| AGATHENSIS (Agde - Hérault) | Created during the second half of the fifth century. |
| AGENNENSIS (Agen - Lot-et-Garonne) | Probably established since 357. |
| ALBIENSIS (Albi - Tarn) | Probably existing in the fourth century. Archbishopric in 1676. |
| ALETENSIS (Saint-Servan - Ille-et-Vilaine) | Established in sixth century, transferred about 1160 to the present site St Malo. |
| AMBIANENSIS (Amiens - Somme) | Established since the end of the third century. |
| ANDEGAVENSIS (Angers - Maine-et-Loire) | Created at the middle of the fourth century. |
| ANICIENSIS (Le Puy - Haute-Loire) | Created at Saint-Paulien, transferred to Puy in the fifth century. |
| ANTIPOLITANENSIS (Antibes - Alpes-Maritimes) | Attested since the middle of the fifth century, disestablished and transferred in 1244, to Grasse. |
| APPAMIARUM (Pamiers - Ariège) | Created on the 23 July 1295 by the division of the diocese of Toulouse. |
| APTENSIS (Apt - Vaucluse) | Established since the fourth century. |
| AQUENSIS (Aix-en-Provence - Bouches-du-Rhône) | Created in the third century, Archbishopric in 794. |