Columbia subject headings:
Nobility--France--History.
Nobility--Germany--History.
Harvard subject headings:
Nobility--France--History
Nobility--France--History--To 1500.
Nobility--Germany--History--To 1500.
Nobility--Germany--History.
Social history--Medieval, 500-1500
Princeton subject headings:
Nobility--France--History--To 1500.
Nobility--Germany--History--To 1500.
Social history--Medieval, 500-1500.