Subject (Geographic)
- Düsseldorf (Germany)2
- Kaiserslautern (Germany)2
- Mainz (Rhineland-Palatinate, Germany)2
- Regensburg (Germany)2
- Toledo (Spain)2
- Amsterdam (Netherlands)1
- Aschaffenburg (Germany)1
- Augsburg (Germany)1
- Bielefeld (Germany)1
- Bonn (Germany)1
- Braunschweig (Germany)1
- Brest (Belarus)1
- Chernivt︠s︡i (Ukraine)1
- Detmold (Germany)1
- Emden (Lower Saxony, Germany)1
- Euskirchen (Germany)1
- Göteborg (Sweden)1
- Gunzenhausen (Germany)1
- Głogów (Województwo Dolnośląskie, Poland)1
- Hildesheim (Germany)1