Columbia subject headings:
Castles--France--Périgord.
Manors--France--Périgord.
Périgord (France)--Description and travel.
Harvard subject headings:
Castles--France--Périgord.
Manors--France--Périgord.
Périgord (France)--Description and travel.
Princeton subject headings:
Architecture--France--Périgord.
Castles--France--Périgord.
Manors--France--Périgord.
Périgord (France)--Description and travel.
Périgord (France)--History.