Château du Muguet, Heritage-listed castle in Breteau, Loiret, France

Château du Muguet is a red-brick castle built in 1863 in the neo-Louis XIII style to plans by architect Arthur Froelicher, standing west of Breteau on the D47 road toward Ouzouer-sur-Trézée. Its symmetrical facade has pale stone quoins and window surrounds, a central square tower with a domed lantern, and corner turrets with pointed slate roofs. The castle and its stables were listed as monuments historiques on 9 September 1991.

Built in 1863 to plans by architect Arthur Froelicher in a neo-Louis XIII style, the château stands west of Breteau on the D47 road toward Ouzouer-sur-Trézée. On 11 and 12 June 1940 it hosted the Briare Conference, the penultimate meeting of the Allied Supreme Council, where Churchill, Reynaud, Pétain and de Gaulle met while Weygand had his headquarters there. The château and its stables were listed as monuments historiques on 9 September 1991.

The name Muguet (lily of the valley) is not explained by the sources, which record only the château's location west of Breteau on the D47 toward Ouzouer-sur-Trézée, near the hamlets of La Clairditière and La Gipauderie and south of the Étang de la Grande Rue. The building and its stables have been listed as monuments historiques since 9 September 1991.

The château stands west of Breteau on the D47 towards Ouzouer-sur-Trézée, near the hamlets of la Clairditière and la Gipauderie and south of the étang de la Grande Rue. It is a private property with no visitor facilities, so the brick and stone facades, the domed central lantern and the corner turrets are seen from the road and the forecourt. The château and its stables have been listed as monuments historiques since 9 September 1991.

Weygand, generalissimo of the French army, installed his cabinet at the château, a few kilometres from the Grand Quartier Général at Briare. Paul Reynaud then chose the Muguet to host the meeting Churchill had requested, which took the name conference of Briare. The château and its stables have been listed as monuments historiques since 9 September 1991.