In the Nibelungenlied King Gunther and Queen Brunhild hold their court at Worms, and Siegfried comes hither to woo Kriemhild.
Gunnar, on the other hand, wished to make Brunhild his wife, and asked Sigurd to ride with him on this quest, which he consented to do on condition of receiving Gudrun to wife.
So Gunnar and Brunhild were wedded, and Sigurd, resuming his own form, rode back with them to Giuki's court where the double marriage was celebrated.
But criticism is still busy attempting to trace these also to historical originals, and Theodor Abeling (Das Nibelungenlied, 1907) makes out a very plausible case for identifying Siegfried with Segeric, son of the Burgundian king Sigimund, Brunhild with the historical Brunichildis, and Hagen with a certain Hagnericus, who, according to the Life of St Columban, guided the saint (the chaplain of the Nibelungenlied), who had incurred the enmity of Brunichildis, safe to the court of her grandson Theuderich, king of the West Franks.
On the summit of a fire-girt hill Sigurd found the Valkyrie Brunhild in an enchanted sleep, and ravished by her beauty awakened her; they plighted their troth to each other and, next morning, Sigurd left her to set out once more on his journey.
Siegfried and Gunther accordingly go together to Brunhild's castle of Isenstein in Iceland, and there the hero, invisible in his tarnkappe, stands beside Gunther, hurling the spear and putting the weight for him, and even leaping, with Gunther in his arms, far beyond the utmost limit that Brunhild can reach (Avent.
But Brunhild is ill content; though she saw Siegfried do homage to Gunther at Isenstein she is not convinced, and believes that Siegfried should have been her husband; and on the bridal night she vents her ill humour on the hapless Gunther by tying him up in a knot and hanging him on the wall.
But Brunhild was moody and suspicious, remembering her troth with Sigurd and believing that he alone could have accomplished the quest.