Helvii

The Helvii (also Elui, ancient Greek Ἑλουοί) were a relatively small Celtic polity west of the Rhône river on the northern border of Gallia Narbonensis. Their territory was roughly equivalent to the Vivarais, in the modern French department Ardèche. Alba Helviorum was their capital, possibly the Alba Augusta mentioned by Ptolemy, and usually identified with modern-day Alba-la-Romaine (earlier Aps). In the 5th century the capital seems to have been moved to Viviers.

From the mid-2nd to mid-1st century BC, Helvian territory was on the northern border of the Roman province of Gallia Transalpina (later the Narbonensis). As a border people, the Helvii played a crucial if limited role in the Gallic Wars under the leadership of Gaius Valerius Caburus, who had held Roman citizenship since 83 BC, and his sons Troucillus and Domnotaurus.Julius Caesar calls the Helvii a civitas, a polity with at least small-scale urban centers (oppida), and not a pagus ("sub-tribe").

The source of the Loire river (Latin Liger) was located in Helvian territory, near their northern border along the crest of the Cévennes, where their lands were contiguous with those of the Gabali and the Vellavi; to the east, the Rhône offers a natural boundary, despite some indications that their holdings extended across the river.

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