Columbia subject headings:
Aristocracy (Political science)--France--Normandy--History--To 1500.
Duchies--France--Normandy--History--To 1500.
Normandy (France)--History--To 1515.
Plantagenet, House of.
Harvard subject headings:
Aristocracy (Political science)--France--Normandy--History--To 1500.
Duchies--France--Normandy--History--To 1500.
Normandy (France)--History--To 1515.
Plantagenet, House of.
Princeton subject headings:
Aristocracy (Political science)--France--Normandy--History--To 1500.
Duchies--France--Normandy--History--To 1500.
Normandy (France)--History--To 1515.
Plantagenet, House of.