The 1703 Siege of Kehl was a military action of the War of the Spanish Succession, in which French forces under the command of the Duc de Villars captured the fortress of the Holy Roman Empire at Kehl, opposite Strasbourg on the Rhine River. Siege operations began on 20 February 1703, following Villars' early departure from winter quarters. The fortress, defended by 3,500 troops of Louis William, the Margrave of Baden-Baden, capitulated on March 10.