An imperial castle or Reichsburg was a castle built by order of the Holy Roman Emperor, whose management was entrusted to Reichsministeriales or Burgmannen. It is not possible to identify a clear distinction between imperial castles and the fortified imperial palaces or Pfalzen, because many imperial castles were used by German kings for temporary stays. A large number of imperial castles were built in regions such as Swabia, Franconia, the Palatinate and the Alsace, where there were a high density of imperial estates (Reichsgüter) during the Hohenstaufen era.
Château du Haut-Kœnigsbourg, Orschwiller, Alsace
Grüningen Castle, Markgröningen
Stettenfels Castle, Untergruppenbach
Nuremberg Castle, Nuremberg
Königsberg Castle, Königsberg
Schwedenschanze Castle, Cham
Wildenberg Castle, Kirchzell
Boyneburg, Sontra
Friedberg Castle, Friedberg
Gelnhausen Palace, Gelnhausen
Hayn Castle, Dreieichenhain
Kalsmunt Castle, Wetzlar
Münzenberg Castle, Münzenberg
Harliburg, Vienenburg
Berenstein Castle, Bergstein
Rhineland-Palatinate
Berwartstein Castle, Erlenbach bei Dahn
Cochem Castle, Cochem
Guttenberg Castle, Oberotterbach
Hammerstein Castle, Hammerstein
Landeck Castle, Landau
Landskron Castle, Bad Neuenahr-Ahrweiler
Lindelbrunn Castle, Vorderweidenthal
Meistersel Castle, Ramberg
Ramburg, Ramberg
Trifels Castle, Annweiler
Wegelnburg, Schönau
Wildburg, Sargenroth
Berenstein Castle
Saarland
Kirkel Castle, Neuhäusel
Kyffhausen Castle, Steinthaleben
Switzerland
Gümmenen Castle, Gümmenen, Canton Berne
Nydegg Castle, Berne, Canton Berne
Weissenau Castle, Unterseen, Canton Berne
Imperial castle Wikipedia (Text) CC BY-SA