Columbia subject headings:
Architecture--Germany--Sinzig--History--19th century.
Castles--Germany--19th century.
Castles--Germany--Sinzig.
Hohenzollern, House of.
Sinzig (Germany)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Modern--19th century--Germany--Sinzig.
Hohenzollern, House of.
Sinzig (Germany)--Buildings, structures, etc.
Sinzig (Germany)--History.
Princeton subject headings: