Frederick the Great's most notable and decisive military victories on the battlefield were the Battles of Hohenfriedberg, fought during the War of Austrian Succession in June 1745; the Battle of Rossbach, where Frederick defeated a combined Franco-Austrian army of 41,000 with only 21,000 soldiers (10,000 dead for the Franco-Austrian side with only 550 casualties for Prussia); and the Battle of Leuthen, which was a follow-up victory to Rossbach pitting Frederick's 39,000 troops against Charles of Lorraine's Austrian force of 65,000, in which Frederick's masterful strategy and tactics at Leuthen inflicted 22,000 casualties, including 12,000 prisoners, upon the Austrians.