Columbia subject headings:
Robert I, Duke of Normandy, approximately 1010-1035--Romances--History and criticism--Congresses.
Roman de Robert le Diable--Congresses.
Harvard subject headings:
Legends--France
Robert I, Duke of Normandy, approximately 1010-1035--Legends.
Princeton subject headings:
Legends.
Robert I, Duke of Normandy, approximately 1010-1035--Legends--Congresses.
Robert the Devil--Congresses.