"The term Nibelung (German) or Niflung (Old Norse) is a personal or clan name with several competing and contradictory uses in Germanic heroic legend. It has an unclear etymology, but is often connected to the root nebel, meaning mist. The term in its various meanings gives its name to the Middle High German heroic epic the Nibelungenlied.
The most widespread use of Nibelung is used to denote the Burgundian royal house, also known as the Gibichungs (German) or Gjúkings (Old Norse). A group of royal brothers led by king Gunther or Gunnar, the Gibichungs are responsible for the death of the hero Siegfried or Sigurd and are later destroyed at the court of Attila the Hun (called Etzel in German and Atli in Old Norse). This is the only use of the term attested in the Old Norse legends." - (en.wikipedia.org 12.02.2020)
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