One of the earliest extant versions of the Tristan and Yseut story, Beroul's French manuscript of The Romance of Tristan dates back to the middle of the twelfth century. It recounts the legend of Tristan, nephew of King Mark of Cornwall, and the king's Irish wife Yseut, who fall passionately in love after mistakenly drinking a potion. versions of the Tristan and Yseut story, Beroul's French manuscript of The Romance of Tristan dates back to the middle of the twelfth century. It recounts the legend of Tristan, nephew of King Mark of Cornwall, and the king's Irish wife Yseut, who fall passionately in love after mistakenly drinking a potion. Their illicit romance remains secret Find The Romance Of Tristan by Beroul at Biblio. Uncommonly good collectible and rare books from uncommonly good booksellers Find The Romance of Tristram by Beroul. The Romance of Tristram by Beroul Book Description: Blackwell, 1970. Vol. 2 only, Introduction & Commentary, 1st edition at least VG/VG One of the earliest extant versions of the Tristan and Yseut story, Beroul's French manuscript of The Romance of Tristan dates back to the middle of the twelfth century. It recounts the legend of Tristan, nephew of King Mark of Cornwall, and the king's Irish wife Yseut, who fall passionately in love after mistakenly drinking a potion. Romance of Tristan is a great read. Takes you back to the 11th and 12th Centuries and describes a somewhat tragic love affair between Tristan and the King's wife, Yseut(Isolde). The King is Tristan's uncle, and Tristan is a great knight in King Mark's court, so this adds to the story's impact.