Columbia subject headings:
Harvard subject headings:
Castles--France--Murol (Puy-de-Dôme)
Fortification--France--Murol (Puy-de-Dôme)
Murol (Puy-de-Dôme, France)--Buildings, structures, etc.
Murol (Puy-de-Dôme, France)--History.
Princeton subject headings:
Castles--France--Auvergne--Catalogs.
Catalogs.