Nibelungenlied
In the Nibelungenlied, Brunhild (or Prunhilt) is instead the queen of Iceland. Gunther here overpowers her in three warlike games with the help of Siegfried – equipped with an invisibility cloak. Firstly, Brunhild throws a spear towards Gunther that three men only barely can lift, but the invisible Siegfried diverts it. Secondly, she throws twelve fathoms a boulder that requires the strength of twelve men to lift. Lastly, she leaps over the same boulder. Gunther, however, defeats her with Siegfried's help also in these games, and takes her as his wife.
On their wedding night, Brunhild, refuses to yield her virginity to Gunther, and instead ties him up and suspends him from the ceiling of their chamber. Siegfried (again invisible) violently subdues Brunhild, by cracking her bones and taking from her her girdle and ring. Following this episode Brunhild loses her supernatural strength and becomes a devoted wife to Gunther.
Later, in front of the Worms Cathedral, Brunhild enters into an argument with Siegfried’s wife Kriemhild regarding their husbands’ relative prestige. Brunhild believes Siegfried to be nothing more than a lowly vassal of Gunther’s, but Kriemhild reveals the deception and humiliates Brunhild by showing her the ring and girdle.
The Nibelungenlied also differs from Scandinavian sources in its silence on Brunhild's fate; she fails to kill herself at Siegfried's funeral, and presumably survives Kriemhild and her brothers.
Read more about this topic: Brunnhilde