Cassone find an agreement between the two families .
It was not accepted by Guido della Torre ; Emperor Henry VII then forced Guido della Torre to flee from Milan and sold the title of imperial vicar for Milan to Matteo I Visconti .
Cassone find an agreement between the two families but it was not accepted by Guido della Torre ; Emperor Henry VII then forced Guido della Torre to flee from Milan and sold the title of imperial vicar for Milan to Matteo I Visconti .