Columbia subject headings:
Castles--Germany--Oberpfalz.
Oberpfalz (Germany)--Description and travel.
Harvard subject headings:
Castles--Germany--Oberpfalz.
Oberpfalz (Germany)--Description and travel.
Princeton subject headings:
Castles--Germany (West)--Oberpfalz.
Oberpfalz (Germany)--Description and travel.