Imperial castle Trifels Castle Burgraviate of Friedberg Imagina of Isenburg-Limburg Harliburg List of the burgraves of Friedberg Kyffhäuser Ernst Ewald Hammerstein castle List of the burgraves of Meissen Palas Kulmer Steig Old Wolfstein Castle Cochem Guttenberg Castle (Palatinate) Barbarossa city List of castles in Thuringia House of Dahn List of castles in Rhineland-Palatinate Hambach Castle Kyffhausen Castle Imperial Palace, Gelnhausen Kaiserpfalz Wetzlar Königstein im Taunus Nuremberg Schweinfurt Palace Palatinate Forest Henry V, Holy Roman Emperor