Château Marmont, Neo-classical castle in Châtillon-sur-Seine, Burgundy, France

Château Marmont is a neo-classical castle at the western edge of Châtillon-sur-Seine in Burgundy. It stands on grounds that were originally fortified in the 15th century, positioned along the northeastern bank of the RD 965 road near the Seine river.

The castle developed from a fortified site built in the 15th century and later became associated with Marshal Marmont. During the Franco-Prussian War in 1870, Prussian forces set fire to it during their withdrawal, though one wing was rebuilt afterwards.

The name honours Auguste de Marmont, made marshal by Napoleon, who owned the estate in the early 19th century. Napoleon himself stayed here from 18 to 22 May 1795 and again on 12-13 March 1796, then passed through on 5 April 1805 on his way to be crowned King of Italy in Milan. The Maitre family, ironmasters of Sainte-Colombe, have held the house since about 1824.

The castle is privately owned and not open to public visits, as it has been the residence of the Maitre family since 1824. You can see the building from the nearby RD 965 road when passing through the area.

In September 1914 General Joffre launched the offensive of the First Battle of the Marne from this castle. Three years later the American army occupied it, and Harry Truman, later president of the United States, stayed here. The building itself is only the left wing of a much larger 18th-century house, and the rest of its park lies in the commune of Sainte-Colombe-sur-Seine.