Château de La Roche-Guyon is a French château in the commune of La Roche-Guyon, in the Val-d'Oise region at the gateway to Normandy, on the right bank of the Seine. From February 1944, the château was occupied by the staff of Generalfeldmarschall Erwin Rommel. Rommel had earlier been put in charge of defending the French coast against the coming Allied landings. He chose the château as his headquarters, temporarily returning it to its military role.
At the foot of the cliff, boves were dug to house munitions. Separated by thick chalk walls, they were also protected by armored gates, and concrete flak guards were installed in the castle courtyards. Marshal Rommel took up residence in the Enville pavilion, choosing the grand salon as his study, extended by its rose-planted terrace. The de La Rochefoucauld family lived on the upper floor.
By early 1944, Rommel knew that the Nazi defeat was inevitable. In a secret meeting with Carl-Heinrich von Stülpnagel, Commander-in-Chief of the German Army in France, the two men agreed on the need to overthrow the Nazi regime and end the war. Rommel feared civil war in the event of Adolph Hitler's assassination. In the weeks that followed, numerous secret meetings took place at the castle: "Almost every day, Reich personalities arrived to speak freely in the oasis of Rommel's headquarters, far from the clutches of the Gestapo. Source https://fr.wikipedia.org/wiki/Château_de_La_Roche-Guyon