House of Sforza
When the House of Sforza was restored to the Duchy of Milan in 1512, Isabella hoped to wed Bona and Duke Maximilian Sforza, thereby providing further legitimacy to Maximilian's reign. There were other proposals as well: Spanish King Ferdinand II of Aragon proposed Giuliano de' Medici and brother of Pope Leo X; Isabella counter-proposed Ferdinand's 10-years-old grandson Ferdinand of Habsburg; Pope Leo X proposed Philippe, Duke of Nemours, who would succeed to the Duchy of Savoy if his brother Charles III abdicated.