later duc de Valentinois
born с 1475/76, probably Rome
died 1507, near Viana, Spain
Italian military leader, illegitimate son of Pope Alexander VI, and brother of
He was made archbishop of Valencia (1492) and cardinal (1493). After his brother's murder (1497), he took command of the papal armies. In 1498 he resigned his ecclesiastical offices and married the sister of the king of Navarre, a move calculated to win French support for a campaign to regain control of the Papal States. Acting in concert with his father, Cesare won a series of military successes in the Papal States (1499–1503), gaining a reputation for ruthlessness and assassination; his political astuteness led Niccolò Machiavelli to cite him as an example of the new "Prince." Cesare's gains proved fruitless, however, when his father died (1503) and the new pope, {{link=Julius">Julius II , demanded that he give up his lands. He escaped from prison in Spain and died fighting for Navarre.