Hartmann produced four narrative poems which are of importance for the evolution of the Middle High German court epic. The first of these,
Erec, which may have been written as early as 1191 or 1192, and the last,
Iwein, belong to the
Arthurian cycle and are based on epics by
Chrétien de Troyes (
Erec and Enide and
Yvain, the Knight of the Lion, respectively). While the story of Chretien's
Yvain refers to events in Chretien's
Lancelot, to explain that Arthur is not present to help because Guinevere has been kidnapped, Hartmann did not adapt Chretien's
Lancelot. The result is that Hartmann's
Erec introduces entirely different explanations for Guinevere's kidnapping, which do not correspond to what occurred in the shared literary tradition of Chretien's Arthurian romances. His other two narrative poems are
Gregorius, also an adaptation of a French epic, and
Der arme Heinrich, which tells the story of a leper cured by a young girl who is willing to sacrifice her life for him. The source of this tale evidently came from the lore of the noble family whom Hartmann served.
Gregorius,
Der arme Heinrich and Hartmann's lyrics, which are all fervidly religious in tone, imply a tendency towards asceticism, but, on the whole, Hartmann's striving seems rather to have been to reconcile the extremes of life; to establish a middle way of human conduct between the worldly pursuits of knighthood and the ascetic ideals of
medieval religion. Translations have been made into modern German of all Hartmann's poems, while
Der arme Heinrich has repeatedly attracted the attention of modern poets, both English (
Longfellow,
Rossetti) and German (notably,
Gerhart Hauptmann). He was also a
Minnesänger, and 18 of his songs survive. ==Editions and translations==