Francesco I Sforza
In 1441, after long jurisdiction by the bishops of Lodi, the settlement was sold to the Venetian family Fagnani by Filippo Maria Visconti, the Duke of Milan and subsequently, in 1450, to Gian Giacomo Trivulzio under whom it was granted the status of "borgo" ("burg", a fortified town) by Francesco I Sforza.