Analysis of information sources in references of the Wikipedia article "Gauls" in English language version.
Peuple de la Gaule Narbonnaise entre les Allobroges au N. et les Segalauni au S., avait pour capit. Augusta Tricastinorum (Aoust-en-Diois)
Late classical sources—if they are to be trusted—suggest that it survived at least into the 6th century AD.
Because of chronic internal rivalries, Gallic resistance was easily broken, though Vercingetorix's Great Rebellion of 52 bce had notable successes.
Indeed, the Gallic cavalry was probably superior to the Roman, horseman for horseman. Rome's military superiority lay in its mastery of strategy, tactics, discipline, and military engineering. In Gaul, Rome also had the advantage of being able to deal separately with dozens of relatively small, independent, and uncooperative states. Caesar conquered these piecemeal, and the concerted attempt made by a number of them in 52 bce to shake off the Roman yoke came too late.
