Bettange-sur-Mess Castle (Luxembourgish: Bettenger Schlass; French: Château de Bettange-sur-Mess) is located in the village of Bettange-sur-Mess near Dippach in the southwest of Luxembourg. Built in 1753 by René Louis de Geisen, the castle has changed ownership several times. Since 1996, it has been a retraining centre for mentally handicapped persons run by the Association des Parents d’Enfants Mentalement Handicapés.[1] [2]