Historian and statesman, born Florence, 1483; died there, 1540. He represented Florence at the Spanish court; later governed Modena and Reggio for Leo X; aided in forming the anti-imperial League of Cognac, and in subjugating Florence to the Medicean rule; but fell into disfavor on opposing the absolutism of Cosimo de' Medici. His chief work is a history of Italy from 1492 to 1534.