The Battle of Marignano took place from September 13 to 14, 1515, near the town of Marignano in Italy. It was a significant conflict during the Italian Wars, where the forces of the Kingdom of France, led by King Francis I, faced the troops of the Duchy of Milan and their allies, including the Spanish Empire and the Swiss Confederation. The battle resulted in a decisive victory for the French, solidifying their control over Milan. This victory marked a turning point in the Italian Wars, as it allowed France to expand its influence in northern Italy and demonstrated the effectiveness of the French military tactics of the time.