 Complete the following phrase:  The XI Corps of the Grande Armée was a French military unit that existed during the Napoleonic Wars. In 1809, during the War of the Fifth Coalition, General Auguste de Marmonts Army of Dalmatia was renamed the XI Corps. Emperor Napoleon I held it in reserve at the Battle of Wagram. In 1812, the unit was reconstituted during the invasion of Russia and placed under Marshal Pierre Augereau. It did not fight in any battles and instead served a collection point for reserves. In spring 1813, it was reorganized and placed under the command of Marshal Jacques MacDonald. The corps fought at Lützen, Bautzen, 