VIENNE, the chief town of an arrondissement of the depart ment of the Isere, France. Pop. (1931) 21,748. Vienne stands on the left bank of the Rhone just below the junction of the Gere with the Rhone, between the river and low hills, and about 20 m. by rail S. of Lyons. Its site is an immense mass of ancient debris, which is constantly yielding interesting antiquities. On the bank of the Gere are traces of the ramparts of the old Roman city, and on the Mont Pipet (E. of the town) are the remains of an amphitheatre, while the ruined castle there was built in the 13th century on Roman substructures. Several of the ancient aqueducts (one only is now actually in use) are still to be seen.
Vienne, originally the capital of the Allobroges, became a Roman colony about 47 B.c. under Caesar, who embellished and fortified it. A little later these colonists were expelled by the Allo broges; the exiles then founded the colony of Lyons (Lugdunum). It was not till the days of Augustus and Tiberius that Vienne regained all its former privileges as a Roman colony. Later it became the capital of the Provincia Viennensis. In 257 Postumus was proclaimed emperor here, and for a few years Vienne was the capital of a short-lived provincial empire. It is said to have been converted to Christianity by Crescens, the disciple of St. Paul.
There were Christians here in 177, as in the Greek letter (pre served to us by Eusebius) addressed at that date by the churches of Vienne and Lyons to those of Asia and Phrygia mention is made of "the" deacon of Vienne. The first bishop certainly known is Verus, who was present at the Council of Arles in 354.
kingdom of Provence or Arles till in 1032 it reverted to the Holy Roman Empire. Vienne was sacked in 1562 by the Protes tants under the baron des Adrets, and was held for the Ligue 1590-95, when it was taken by Montmorency. The fortifications were demolished between 1589 and 1636. In 1790 the archbish opric was abolished, the title "Primate of all the Gauls" being attributed to the archbishops of Lyons.
There are very important cloth factories and also distilleries, iron foundries, refining furnaces, etc. Vienne is the seat of a sub-prefect, of a tribunal of commerce, a chamber of commerce and a board of trade-arbitrators.