Ludovico Sforza
In 1495, Ludovico Sforza betrayed the French by changing sides in the war and joining the anti-French League of Venice (sometimes called the "Holy League"). This left Louis, the Duke of Orleans, in an awkward and inferior military position at the Battle of Fornovo on 6 July 1495. As a result, Louis had come to hate Ludovico Sforza. Accordingly, even before he became King of France, Louis began to claim the Duchy of Milan as his own inheritance, which should have come to his by right of his paternal grandmother Valentina Visconti.