The Battle of Fontenoy was fought at Fontenoy in the Austrian Netherlands on May 11, 1745, during the War of Austrian Succession. French forces under Hermann Maurice, Count de Saxe (the Maréchal of Saxe, an illegitimate son of King Frederick Augustus I of Poland) defeated an Anglo-Dutch-Hanoverian army under the Duke of Cumberland. The French lost 5000 men, while the British lost 9000 men.