The modern Mont St. Genèvre, generally, though erroneously, supposed to be the
place where Hannibal crossed into Italy. (See Alpes
They took their name from Cottius, a king of several Ligurian tribes in the Cottian Alps,
which also derived their name from him. He submitted to Augustus, who granted him the
sovereignty over twelve of these tribes, with the title of praefectus. Cottius thereupon made
roads over the Alps, and erected (B.C. 8) at Segusio (Susa) a triumphal arch in honour of
Augustus, extant at the present day. It is 44 feet in height and 39 in width, with projecting
Corinthian columns at the corners and sacrificial scenes on the friezes.