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