Francesco I Sforza
On June 4, 1440 he received a special military standard and proceeded to Tuscany with a force of 3000 horsemen and 500 foot soldiers to support Francesco I Sforza and other papal and Florentine "condottieri" against Niccolò Piccinino. Trevisan commanded the right flank of the combined papal-Florentine forces that defeated Piccinino in the Battle of Anghiari on June 29.