Gian Giacomo Trivulzio

Gian Giacomo Trivulzio (1440 or 1441–1518) was a Milanese nobleman and condottiero from the ancient House of Trivulzio. After fighting for the Sforza dukes, he entered French service under Charles VIII in 1483 and later served Naples; as commander of the Neapolitan army he negotiated peace with Charles, who then employed him.

Commanding Louis XII's army, he forced Ludovico Sforza from Milan in 1499 and was made a marshal of France and governor of the city. He later fought at Agnadello in 1509 and Marignano in 1515 and defended Milan against Emperor Maximilian I in 1516. Falling into disgrace, he died at Arpajon in 1518.