Besides Geldern, other towns in the Prussian duchy were Horst, Venray, and Viersen, the latter of which was an exclave surrounded by the Duchy of Jülich.
Wijk aan Zee | Louis Horst | Horst Liepolt | Horst Hrubesch | Maas | Horst Köhler | Horst | Timo Maas | Horst Schumann | Horst Buchholz | Alphen aan den Rijn | Winy Maas | Valkenburg aan de Geul | Muziekgebouw aan 't IJ | Horst Wessel | Horst Stein | Horst Muhlmann | Horst Jankowski | Horst Bredekamp | Horst aan de Maas | Hans Horst Meyer | Egmond aan Zee | Peter Maas | Horst Heese | Horst H. Baumann | Horst Fascher | Bill Maas | 18th SS Volunteer Panzergrenadier Division Horst Wessel | Rudolph Arnold Maas Geesteranus | Ouderkerk aan de Amstel |