Columbia subject headings:
Gottfried, von Strassburg, active 13th century. Tristan.
Love in literature.
Tristan (Legendary character)--Romances--History and criticism.
Harvard subject headings:
Arthurian romances--History and criticism.
Gottfried, von Strassburg, active 13th century. Tristan.
Knights and knighthood in literature.
Tristan (Legendary character)--Romances--History and criticism.
Princeton subject headings: