In the 5th century the capital seems to have been moved to Viviers.
Helvii |
During the first year of the Garilc Wars, Caesar sent Mettius and the Helvian Celt Gaius Valerius Troucillus as envoys to the Suebian king Ariovistus, in what is presented as a last-ditch effort to prevent a full-scale war.