Certosa di Pavia
In 1491 he moved to Milan called by Isabella's brother-in-law Ludovico Sforza, who commissioned him the tomb of Gian Galeazzo Visconti at the Certosa di Pavia, which he executed in collaboration with Benedetto Briosco. After the fall of the Sforza (1499) he returned to work for Isabella d'Este, for which he executed some fine medals and the precious marble portal of her study in the Ducal Palace of Mantua.