Columbia subject headings:
Castles--France--Sologne.
Historic buildings--France--Sologne.
Sologne (France)--History.
Harvard subject headings:
Castles--France--Sologne.
Historic buildings--France--Sologne.
Sologne (France)--History.
Princeton subject headings:
Architecture--France--Sologne.
Castles--France--Sologne.
Sologne (France)--Buildings, structures, etc.