Тристан и Изольда
Massmann's writings include editions of "Deutsche Gedichte des 12 Jahrhunderts" (1837–42); Gottfried's "Tristan and Iseult" (1843); "Kaiserchronik" (1849–53); of the biblical translations of the Gothic bishop Ulfilas (1855–56) and of Tacitus's "Germania" (1847). He was also the author of "Geschichte des mittelalterlichen Schachspiels" (1839) and "Litteratur der Totentänze" (1840).