Columbia subject headings:
Harvard subject headings:
Battles in literature.
German poetry--Middle High German, 1050-1500--History and criticism
Hartmann, von Aue, active 12th century--Criticism and interpretation.
Wolfram, von Eschenbach, active 12th century--Criticism and interpretation.
Princeton subject headings:
Arthurian romances--History and criticism.
Hartmann, von Aue, 12th cent. Erec.
Hartmann, von Aue, active 12th century. Iwein.
Knights and knighthood in literature.
Wolfram, von Eschenbach, 12th cent. Parzival.