Tristan and Yseut rank up there with Lancelot and Guinevere for notorious/famous adulterous lovers. In fact, King Arthur even appears in this story, and in some versions, Tristan is an Arthurian knight. Despite this fame or infamy, I had never actually gone back to the beginning and read the original story, instead relying on references to the couple or reimaginings, or not so good James Franco movies. http://notesfromtheofficersclub.blogspot.com/2014/03/book-22-romance-of-tristan.html