Tristrams saga ok Ísöndar

Tristrams saga ok Ísǫndar (Saga of Tristram and Ísǫnd) or Saga af Tristram ok Ísǫnd, also known in English as Tristram's Saga, is a riddarasaga or chivalric saga written in 1226 for the king of Norway by one Brother Robert. It now for the most part survives only in a later Icelandic recension. It is an abridged translation into Old Norse of Tristan, an Old French romance by Thomas of Britain now only extant in fragmentary form. It is a work of great interest to literary scholars, firstly as the only early witness to the complete legend of Tristan and Isolde in the form in which Thomas told it, and secondly because as the first romance to have been translated into Old Norse it exercised a profound influence on later Icelandic literature.