HKB
King Gundahar, the Gunther of the "Nibelungenlied", who also fell in the battle, became the central figure of a new legend, namely, the story of the fall of the Burgundians.
Attila is not thought to have taken part in the invasion, still, after his death in 454, his name gradually came to be associated with the slaughter of the Burgundians, for a legend operates mainly with types, and as Attila was a Hun and throughout the Middle Ages was looked upon as the type of a cruel tyrant, greedy for conquest, it was but natural for him to play the rôle assigned to him in the legend. Quite plausible is Boer's explanation of the entrance of Attila into the legend. The "Thidreksaga" locates him in Seest in Westphalia. Now this province once bore the name of "Hunaland", and by a natural confusion, because of the similarity of the names, "Huna" and "Huns", Attila, who is the chief representative of Hunnish power, was connected with the legend and located at Seest. This would show that the original extension of the legend was slight, as Xanten, the home of Hagen, is but seventy miles from Seest. The original form would then be that Hagen was slain by a king of "Hunaland", then because history relates that the Burgundians were slain by the Huns, the similarity of the names led to the introduction of Attila and the identification of the Nibelungs with the Burgundians. The fact, too, that the Franks rapidly took possession of the district depopulated by the crushing defeat of the Burgundians likewise aided the confusion, and thus the Franks became the natural heirs of the legend concerning the death of Gunther, and so we read of the fall of the Nibelungs, a name that is wholly Frankish in character. This identification led also to Attila's being considered the avenger of Siegfried's death. Poetic justice, however, demands that the slaughter of the Burgundians at the hands of Attila be also avenged. The rumor, that Attila's death was not natural, but that he had been murdered by his wife Ildico ("Hildiko"), gave the necessary features to round out the story. As Kriemhild was the sister of the Burgundian kings, it was but natural to explain her killing of Attila, as described in the Norse versions, by her desire to avenge her brothers.
In our "Nibelungenlied", however, it is no longer Attila, but Kriemhild, who is the central figure of the tragedy. Etzel, as he is called here, has sunk to the insignificant role of a stage king, a perfectly passive observer of the fight raging around him. This change was brought about perhaps by the introduction of Dietrich of Berne, the most imposing figure of all Germanic heroic lore. The necessity of providing him with a role corresponding to his importance, coupled with a growing repugnance on the part of the proud Franks to acknowledge defeat at the hands of the Huns, caused the person of Attila to dwindle in importance. Gradually, too, the role played by Kriemhild was totally changed. Instead of being the avenger of her brothers, as depicted in the Norse versions, she herself becomes the cause of their destruction. Etzel is not only innocent of any desire to harm the Nibelungs, but is even ignorant of the revenge planned by his wife. This change in her role was probably due to the feeling that it was incumbent upon her to avenge the murder of Siegfried.