Columbia subject headings:
Gottfried, von Strassburg, active 13th century. Tristan.
Tristan (Legendary character)--Legends--History and criticism.
Harvard subject headings:
Gottfried, von Strassburg, active 13th century. Tristan.
Tristan (Legendary character)--Romances--History and criticism.
Princeton subject headings:
Gottfried, von Strassburg, active 13th century. Tristan.
Tristan--Legends--History and criticism.