The X Corps of the Grande Armée was a French military unit that existed during the Napoleonic Wars. The corps was first formed in 1807 and placed under the command of Marshal François Joseph Lefebvre. The corps was responsible for bringing the Siege of Danzig to a successful conclusion. During the French invasion of Russia in 1812, the corps was reconstituted and Marshal Jacques MacDonald appointed to lead it. The corps contained a Prussian contingent that went on to form the core of the reformed Prussian Army in 1813. Following the retreat from Russia, the X Corps was given the assignment of holding Danzig under the leadership of General Jean Rapp. The Siege of Danzig lasted from January until November 1813 when the garrison surrendered.
Order of battle
Corps Commander: Maréchal de France Jacques-Étienne Macdonald, duc de Tarente
:Chief of Staff: Adjudant-commandant Jacques Terrier
:Chief, Artillery: General de division Albert-L.-V. Taviel