Lewis & Short

Vĭenna, ae, f., a city in Gallia Narbonensis, on the Rhodanus, now Vienne, Caes. B. G. 7, 9; Cic. Fam. 10, 9, 3; Mel. 3, 5, 2; Plin. 2, 47, 46, § 121; 3, 4, 5, § 36; Mart. 7, 88, 2 al.
Hence, Vĭennensis, e, adj., of or belonging to Vienne: ager, Plin. 14, 1, 3, § 18.
Subst.: Vĭennenses, ĭum, m., the inhabitants of Vienne, Vell. 2, 121; Tac. H. 1, 65; Plin. 14, 4, 6, § 57 al.