Columbia subject headings:
Fortification--France--History--To 1500.
Military architecture--France--History--To 1500.
Harvard subject headings:
Fortification--France--History--To 1500.
Military architecture--France--History--To 1500.
Princeton subject headings:
Architecture--France--History--15th century--Pictorial works.
Castles--France--Pictorial works.
Charles VII, King of France, 1403-1461.
France--History--15th century.
Louis XI, King of France, 1423-1483.
Military architecture--France--Pictorial works.