Prominent among them, and dwelling in the division occupied by the Celts, were the Helvetii, the Sequani and the Aedui, in the basins of the Rhodanus and its tributary the Arar (Saone), who, he says, were reckoned the three most powerful nations in all Gaul; the Arverni in the mountains of Cebenna; the Senones and Carnutes in the basin of the Liger; the Veneti and other Armorican tribes between the mouths of the Liger and Sequana.
Britain was the headquarters of Druidism, but once every year a general assembly of the order was held within the territories of the Carnutes in Gaul.
Chartres was one of the principal towns of the Carnutes, and by the Romans was called Autricum, from the river Autura (Eure), and afterwards civitas Carnutum.
CARNUTES (Carnuti, Carnutae, Kapvourivot in Plutarch), a Celtic people of central Gaul, between the Sequana (Seine) and the Liger (Loire).
34) the Carnutes were one of the tribes which accompanied Bellovesus in his invasion of Italy during the reign of Tarquinius Priscus.
Under Augustus, the Carnutes, as one of the peoples of Lugdunensis, were raised to the rank of civitas socia or foederata, retaining their own institutions, and only bound to render military service to the emperor.
Up to the 3rd century Autricum (later Carnutes, whence Chartres) was the capital, but in 275 Aurelian changed Cenabum from a vicus into a civitas and named it Aurelianum or Aurelianensis urbs (whence Orleans).