Columbia subject headings:
Castles--Hungary--History.
Hungary--Antiquities.
Hungary--History--1000-1699.
Harvard subject headings:
Castles--Hungary--History--To 1500.
Castles--Hungary--History.
Hungary--Social life and customs
Princeton subject headings:
Castles--Hungary--History.
Hungary--Antiquities.
Hungary--History--1000-1699.