The term Nibelung or Niflungr 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 or Gjúkingar. From Wikipedia
