Vannes

Vannes (a town and commune, a prefecture of Morbihan department, Brittany, France)

The Roman name was Latin Veneti, a Gaulish/Celtic tribe whose name likely shares a Proto-Indo-European origin with other similar sounding tribes, from Proto-Celtic *wenyā (“kindred, family”), from Proto-Indo-European *wenh₁- (“to strive”). More at Veneti.