The Probert Encyclopaedia of People

BOII

The Boii were a Celtic people whose original seat is supposed to have been between the Upper Saone and the higher parts of the Seine and Marne. They migrated to Cisalpine Gaul, crossed the Po, and established themselves between it and the Apennines, in the country previously occupied by the Umbrians. After a more or less constant strife with the inhabitants of Southern Italy they attacked the Romans in support of Hannibal in 218 BC, and though defeated, maintained the war until their subjugation by Scipio Nasica in 191 BC. The remnant of the tribe sought refuge among the Tauriscans in the territory since called after them Bohemia, from which there was a later migration, about 58 BC, to Bavaria, to which also they gave their name.
Research Boii