 The other extant manuscripts are mere fragments.Editions by Grimm, "Ruolandes liet" (Göttingen, 1838), based on the Heidelberg manuscript; and by Bartsch (Leipzig, 1874), based on the Strasburg manuscript Selections by Piper, "Die Spielmannsdichtung", II, 14-91 (in Kürschner, "Deutsche National Litteratur", II).To Konrad has also been ascribed the authorship of the "Kaiserchronik", but not on convincing evidence.