 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).