Gian Galeazzo Sforza, duke of Milan (died 1494)

Gian Galeazzo Sforza, also known as Giovan Galeazzo Sforza, was the sixth Duke of Milan. He was the father of Bona Maria Sforza, who later became Queen of Poland. He died in 1494 aged 25 and was succeeded by his uncle, Ludovico Sforza.