Columbia subject headings:
Harvard subject headings:
Knights and knighthood in literature.
Literature, Medieval--Themes, motives--Congresses.
Romances, Spanish--Congresses.
Spanish literature--Classical period, 1500-1700--History and criticism--Congresses
Princeton subject headings:
Literature, Medieval--History and criticism--Congresses.
Spanish literature--To 1500--History and criticism--Congresses.