Columbia subject headings:
Castles--France--History.
Nobility--Dwellings--France--History.
Nobility--France--Social life and customs.
Harvard subject headings:
Castles--France--History.
Nobility--Dwellings--France--History.
Nobility--France--Social life and customs.
Princeton subject headings:
Castles--France--History.
Nobility--Dwellings--France--History.
Nobility--France--Social life and customs.