In this eleven-volume complete transcription of the ‘Ambraser Heldenbuch,’ all texts appear in the original Early High German for the first time. A transcription that is faithful to individual characters used by the scribe is synoptically juxtaposed with the manuscript image. A second, diplomatic transcription is arranged by verses and numbered according to established editions. The lavishly illustrated manuscript of almost 250 parchment folios, commissioned by Emperor Maximilian I at the beginning of the sixteenth century, is one of the most important sources of German narrative literature of the Middle Ages. Volume 7 contains the ‘Nibelungenklage,’ which follows the ‘Nibelungenlied’ in the ‘Ambraser Heldenbuch’ as in eight other surviving manuscripts.