During the Second World War, the château which had belonged since 1933 to the honorary President of the « Cour d'Appel » of Paris, Monsieur Jozon, was requisitioned by the German Army in order to house members of the Organisation Todt.

During the night of the 5th to the 6th of June 1944, three officers who were part of this organization, apparently asleep in their rooms, were made prisoners by the allied troops.
 The château and its outbuildings were immediately transformed into a field hospital known as « Main Dressing Station » under the command of the 225th Parachute Field Ambulance.
 This medical intervention unit, composed of ten officers and somewhere around 100 men was under the 5th brigade of the 6th Airborne Division.
 It was operated under the command of Lieutenant-Colonel Bruce Harvey who had amongst others, already formed a medical outpost at the Café Gondrée located next to the Pegasus Bridge.

On the roof of the château, a large cloth was spread, bearing the emblem of the Red Cross to indicate the presence of medical services.
This effort, however, stopped neither mortar fire nor enemy bombing, the result damaging most notably a part of the outbuildings serving as a canteen to the unit.

Nearly 400 wounded were treated in the first days, the most seriously wounded evacuated by sea to England.
 The two surgery teams, poorly equipped as they were, also performed more than 43 delicate operations.
During the Second World War, the château which had belonged since 1933 to the honorary President of the « Cour d'Appel » of Paris, Monsieur Jozon, was requisitioned by the German Army in order to house members of the Organisation Todt.
During the night of the 5th to the 6th of June 1944, three officers who were part of this organization, apparently asleep in their rooms, were made prisoners by the allied troops.  The château and its outbuildings were immediately transformed into a field hospital known as « Main Dressing Station » under the command of the 225th Parachute Field Ambulance.  This medical intervention unit, composed of ten officers and somewhere around 100 men was under the 5th brigade of the 6th Airborne Division.  It was operated under the command of Lieutenant-Colonel Bruce Harvey who had amongst others, already formed a medical outpost at the Café Gondrée located next to the Pegasus Bridge.
On the roof of the château, a large cloth was spread, bearing the emblem of the Red Cross to indicate the presence of medical services. This effort, however, stopped neither mortar fire nor enemy bombing, the result damaging most notably a part of the outbuildings serving as a canteen to the unit.
Nearly 400 wounded were treated in the first days, the most seriously wounded evacuated by sea to England.  The two surgery teams, poorly equipped as they were, also performed more than 43 delicate operations.
Chateau de Guernon-Ranville