the grounds of the Karlsruher Schloss contained naval and, later, aviation officers, the other, the former Europäischer Hof, was known as "The Listening Hotel", and was an interrogation centre. Freiburg. Located in an old university building. Heidelberg. In barracks from town. Ingolstadt. The camps were located in the city fortifications; fortresses 8, 9 & 10. As a camp for persistent escapers, it was the World War I counterpart to Colditz. Documented in the book The Escaping Club by Alfred John Evans. Villingen. The camp was in a disused barracks. Weingarten near Karlsruhe. Mannschaftslager Ingolstadt. Situated on the edge of the town, holding 4,000 men. Mannheim Located outside of the city. From February 1917 it used as a clearing or exchange camp for British prisoners of war awaiting repatriation. Held 10,000 men. Internierungslager Rastatt Camp for French civilians. During 1918 it was used as a military transit camp. XV Army Corps (Strasbourg) Offizierlager Strasbourg XVI Army Corps (Metz) Metz. Known as Lazarett Saint-Clément. XVII Army Corps (Danzig) Mannschaftslager Czersk. A camp for Russian POWs, to which British prisoners were also later sent. Danzig (Troyl) The "camp" consists of barges moored on the bank of the Vistula River, each containing from 100 to 500 men. The administration block, kitchen, and other facilities of the camp are on shore. Men from the failed Irish Brigade were sent here. XVIII Army Corps (Frankfurt-am-Main) Offizierlager Bingen am Rhein Friedberg Griesheim nr. Frankfurt Mainz. The camp was in the grounds of the Mainz Citadel, and held 700 POWs. Rosenberg. Located in Festung Rosenberg above the town of Kronach. Charles de Gaulle was held as a POW there. Weilburg. POWs were held in a three-storied school-house. Mannschaftslager Darmstadt Located from the town on a cavalry exercise ground. Giessen Görlitz. Held 14,000 POWs. Lazarett Jülich Kreuznach. For up to around 600 prisoner-patients. XIX Army Corps (Leipzig) Offizierlager Döbeln Mannschaftslager Chemnitz. The camp was located in the Friedrich-August Kaserne. Zwickau. The camp held 10,000 POWs. XX Army Corps (Allenstein) Mannschaftslager Arys Osterode Located at a locomotive works. A sub-camp of Preußisch Holland. Preußisch Holland. The camp held 15,000 POWs, with up to 35,000 assigned to various work camps registered there. XXI Army Corps (Saarbrücken) Offizierlager Neunkirchen. Located in a former monastery. Saarbrücken. In a former school. Saarlouis Zweibrücken. British officers were first sent there in 1916. I Royal Bavarian Army Corps (Munich) Mannschaftslager Landsberg am Lech Lechfeld. Held 10,500