They did not mean to conquer for Marseilles alone.

In the year 123 B.C., at some leagues to the north of the Greek city, near a little river, then called the Coenus and nowadays the Arc, the consul C.Sextius Calvinus had noticed, during his campaign, an abundance of thermal springs, agreeably situated amidst wood-covered hills.

There he constructed an enclosure, aqueducts, baths, houses, a town in fact, which he called after himself, Aquae Sextice, the modern Aix, the first Roman establishment in Transalpine Gaul.

As in the case of Cisalpine Gaul, with Roman colonies came Roman intrigue and dissensions got up and fomented amongst the Gauls.

And herein Marseilles was a powerful seconder; for she kept up communications with all the neighboring tribes, and fanned the spirit of faction.