Strabo Geography 5.1.6

[6] Formerly, as we have said, the district next this river was chiefly inhabited by Kelts. The principal nations of these Kelts were the Boii, the Insubri, and the Senones and Gaesatae, who in one of their incursions took possession of Rome. The Romans afterwards entirely extirpated these latter, and expelled the Boii from their country, who then migrated to the land about the Danube, where they dwelt with the Taurisci, and warred against the Dacians until the whole nation was destroyed; and they left to the surrounding tribes this sheep-pasturing district of Illyria. The Insubri still exist; their metropolis is Mediolanum, ¹ which formerly was a village, (for they all dwelt in villages,) but is now a considerable city, beyond the Po, and almost touching the Alps. Near to it is Verona, a large city, and the smaller towns Brescia, Mantua, Reggio, and Como. This latter was but a very indifferent colony, having been seriously impaired by the Rhaeti who dwelt higher up, but it was repeopled by Pompey Strabo, father of Pompey the Great. Afterwards Caius Scipio ² transferred thither 3000 men, and finally divus Caesar peopled it with 5000 men, the most distinguished of whom were 500 Greeks. He conferred on these the privileges of citizens, and enrolled them amongst the inhabitants. They not only took up their abode here, but left their name to the colony itself; for all the inhabitants taking the name of νεοκωμῖται, this was translated [into Latin], and the place called Novum-Comum. Near to this place is Lake Larius, ³ which is filled by the river Adda, and afterwards flows out into the Po. The sources of this river, as well as those of the Rhine, rise in Mount Adulas. ⁴