Columbia subject headings:
Architecture, Medieval--Pomerania (Poland and Germany)
Castles--Pomerania (Poland and Germany)
Pomerania (Poland and Germany)--Antiquities.
Harvard subject headings:
Architecture, Medieval--Pomerania (Poland and Germany)
Castles--Pomerania (Poland and Germany)
Pomerania (Poland and Germany)--Antiquities.
Princeton subject headings: