The Battle of Fleurus, fought on 1 July 1690 near Fleurus, then part of the Spanish Netherlands, now in modern Belgium, was a major engagement of the Nine Years' War. A French army led by Luxembourg defeated an Allied force under Waldeck.

François Henri de Montmorency-Bouteville, Duke of Piney-Luxembourg, commonly known as Luxembourg, and nicknamed "The Upholsterer of Notre-Dame", was a French general and Marshal of France. A comrade and successor of the Great Condé, he was one of the most accomplished military commanders of the early modern period and is particularly noted for his exploits in the Franco-Dutch War and War of the Grand Alliance. Not imposing physically, as he was a slight man and hunchbacked, Luxembourg was nonetheless one of France's greatest generals.