The Oranje hotel in Scheveningen (near The Hague, Holland) was in World War II a German prison where Dutchmen who were opposing against the Germans, were imprisoned for questioning and trial. For most of the prisoners the stay was not long lasting and was followed by either release or further detention, often in Germany, either execution on the Waalsdorpervlakte. Estimated 25.000 people, coming from the whole country, have been in prison in the Oranje hotel. Henri Charles Muller was one of the prisoners. Henri Charles Muller died on 1943-08-18 at Neuengamme.
More information can be found here: http://www.gahetna.nl/collectie/archief/inventaris/gahetnascan/eadid/2.19.136/inventarisnr/2/scan-index/9b08efbe4-78c6-102d-ba75-005056a23d00
This information has mostly been supplied by the 'Stichting Oranjehotel' and the relatives or friends of the victims. Also by the society 'Erepeleton Waalsdorp' and the archive of the municipality of Wassenaar and has not been checked for historical correctness.