Gian Galeazzo Sforza, also known as Giovan Galeazzo Sforza, was the sixth Duke of Milan.
Gian Galeazzo Sforza, c.1483, by Giovanni Ambrogio de Predis
Charles VIII visiting the deathbed of Gian Galazzo Sforza at the Palazzo Ducale.
Galeazzo Maria Sforza was the fifth Duke of Milan from 1466 until 1476. He was notorious for being lustful, cruel, and tyrannical.
Galeazzo Sforza, by Piero Benci, Uffizi Gallery
Lament of the duke Galeazzo Maria (1476).
Lampugnani's Conspiracy by Francesco Hayez, 1826