Columbia subject headings:
Lancelot (Legendary character)--Romances--History and criticism.
Lancelot (Prose romance)
Harvard subject headings:
Arthurian romances--History and criticism.
Knights and knighthood in literature.
Lancelot (Legendary character)--Romances--History and criticism.
Lancelot (Prose romance)
Princeton subject headings:
Lancelot (Legendary character)