Columbia subject headings:
Kay (Legendary character)--Romances--History and criticism.
Harvard subject headings:
Arthurian romances--History and criticism.
Kay (Legendary character)--Romances--History and criticism.
Princeton subject headings:
Arthurian romances--History and criticism.
Civilization, Medieval, in literature.
Kay (Legendary character)--Romances--History and criticism.
Knights and knighthood in literature.