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Cottius (flourished 1st century bc) was the king and then prefect of the Ligurian tribes living in the area now called the Cottian Alps, centred on Mount Cenis and the Montgenèvre Pass. Cottius was the son of King Donnus, who had initially opposed but eventually entered into friendly relations with Julius Caesar. After succeeding his father, Cottius maintained his independence while the emperor Augustus subdued other Alpine tribes. Finally, Augustus secured submission by naming him...