Notre Dame de Gravenchon has been occupied by the Germans as from 12 June 1940 .
Notre Dame de Gravenchon has been liberated on 31 August 1944 jointly by the British and Belgian armies ( Brigade Piron ) .
Notre Dame de Gravenchon has been occupied by the Germans as from 12 June 1940 and liberated on 31 August 1944 jointly by the British and Belgian armies ( Brigade Piron ) .