Galeazzo Maria Sforza
Galeazzo Maria Sforza was the fifth Duke of Milan from 1466 until his death. He was famous for being lustful, cruel and tyrannical.
He was born to Francesco Sforza, a popular condottiero and ally of Cosimo de Medici who would gain the Duchy of Milan in 1450, and Bianca Maria Visconti. He married into the Gonzaga family on the death of his first wife Dorotea Gonzaga, he married Bona of Savoy.
Source: Wikipedia