In the Notitia of Gaul, they are enumerated not as Civitates, but merely as Castra.
3.

They do not appear to have been episcopal seats before the fifth and sixth centuries.

Yet there is a passage in Eumenius (Panegyr.Vet.

viii.
7) which very forcibly deters me from extending the territory of the Aedui, in the reign of Constantine, along the beautiful banks of the navigable Saone.

* Note: In this passage of Eumenius, Savigny supposes the original number to have been 32,000: 7000 being discharged, there remained 25,000 liable to the tribute.