Landrés rímur is a 15th century rímur cycle based on a part of Karlamagnús saga. It deals with the tribulations of Queen Ólíf and her son Landrés who are betrayed by the evil Mílon.[1] From the mansöngr of the rímur, it is clear that the author was a woman. This is the only known case of female authorship for a medieval rímur cycle.[2] The cycle was dated by Finnur Jónsson as "hardly younger than 1450"[3] and by Haukur Þorgeirsson to the period 1450–1500.[4] The oldest surviving manuscript is the mid-16th century vellum manuscript Staðarhólsbók. The cycle was printed as part of Finnur Jónsson's Rímnasafn edition of the oldest rímur.[5]