sentences:  The French Fondation pour la Mémoire de la Déportation also estimates that approximately 1,500 Night and Fog prisoners were sent to Hinzert; 390 survived and returned to France and at least 804 died.A bronze monument by the Luxembourgish sculptor Lucien Wercollier honors the prisoners and those murdered at the camp.On December 10, 2005, a memorial and documentation center was opened on the site of the former concentration camp.