Columbia subject headings:
Arthurian romances--History and criticism.
Chrétien, de Troyes, active 12th century. Chevalier au lyon.
Yvain (Legendary character)--Romances--History and criticism.
Harvard subject headings:
Chrétien, de Troyes, active 12th century. Chevalier au lyon.
Yvain (Legendary character)--Romances--History and criticism.
Princeton subject headings:
Chrétien, de Troyes, active 12th century. Chevalier au lyon.