king of the Celts in Gaul in the reign of Tarquinius Priscus.
He belonged to the Bituriges, the most powerful of the Celtic people. When Ambigatus was advanced in years, he sent out Bellovesus and Sigovesus, the sons of his sister, with large swarms of his people to seek new settlements, in consequence of the great number of the population. Bellovesus and Sigovesus drew lots as to the course they should take; the latter in consequence went to the Hercynian forest and the former into Italy. (Liv. 5.34