According to the map which I have:
(
http://gen3553.pagesperso-orange.fr/dioceses.htm ),
only Cambes in the current department of the Gironde was part of the diocese of Bordeaux (n°30 in pink on the map).
Cambes in Lot-et-Garonne was part of the diocese of Agen (n°2 in purple on the map)
Jerome