The Battle of Malplaquet took place on 11 September 1709 during the War of the Spanish Succession, near Taisnières-sur-Hon in France, then part of the Spanish Netherlands. A French army of around 75,000 men, commanded by the Duke of Villars, engaged a Grand Alliance force of 86,000 under the Duke of Marlborough. In one of the bloodiest battles of the 18th century, the latter won a narrow victory, but suffered heavy casualties.