Columbia subject headings:
Castles--Czech Republic--Moravia--History.
Feudalism--Czech Republic--Moravia--History.
Fortification--Czech Republic--Moravia--History.
Nobility--Czech Republic--Moravia--History.
Harvard subject headings:
Castles--Czech Republic--Moravia.
Feudalism--Czech Republic--Moravia--History.
Fortification--Czech Republic--Moravia.
Moats--Czech Republic--Moravia.
Nobility--Czech Republic--Moravia--History.
Princeton subject headings: