During the Second World War, Léon Blum, Georges Mandel, Édouard Daladier, Paul Reynaud and Maurice Gamelin were imprisoned in the castle in 1942 before their appearance at the Riom Trial.
Maurice Gamelin (1872–1958), French general in command of the French forces at the start of World War II and during the Battle of France
The fortifications did not extend through the Ardennes Forest (which was believed to be impenetrable by Commander-in-Chief Maurice Gamelin) or along France's border with Belgium, because the two countries had signed an alliance in 1920, by which the French army would operate in Belgium if the German forces invaded.
Maurice Ravel | Maurice Chevalier | Maurice Maeterlinck | Maurice Richard Arena | Maurice Delafosse | Maurice Sendak | Maurice Gibb | Order of Saints Maurice and Lazarus | Maurice Elvey | Maurice Duruflé | Maurice Béjart | Maurice | Maurice Tourneur | Maurice Merleau-Ponty | Saint-Maurice | Maurice Richard | Maurice LaMarche | Maurice Kanbar | Maurice Jarre | Maurice Fitzgerald | Maurice de Saxe | Maurice Bishop International Airport | Saint-Maurice, Val-de-Marne | Maurice Utrillo | Maurice Petty | Maurice Lucas | Maurice Iwu | Maurice Hewlett | Maurice Blanchot | Maurice Abravanel |
During WWII, the Vichy regime arrested and interned Léon Blum, Édouard Daladier, Paul Reynaud, Georges Mandel and Maurice Gamelin as political prisoners at the fort.