Rennes – Wikipedia

Rennes (French pronunciation: ; Breton: Roazhon [ˈrwɑːõn]; Gallo: Resnn; Latin: Condate Redonum) is a city in the east of Brittany in northwestern France at the confluence of the Ille and the Vilaine. Rennes is the prefecture of the region of Brittany, as well as the Ille-et-Vilaine department.

https://en.wikipedia.org/wiki/Rennes