Gunnar and Hogni then took all the gold, Fafnir's heritage. Dissension
prevailed afterwards between the Giukungs and Atli. He charged them
with being the cause of Brynhild's death. By way of reconciliation, it
was agreed that they should give him Gudrun in marriage, to whom they
administered an oblivious potion, before she would consent to espouse
Atli. Atli had two sons, Erp and Eitil, but Svanhild was the daughter
of Sigurd and Gudrun. King Atli invited Gunnar and Hogni to his
residence, and sent to them Vingi, or Knefrod. Gudrun was aware of
treachery, and sent them word in runes not to come; and to Hogni, as a
token, she sent the ring Andvaranaut, in which she had tied some
wolf's hair. Gunnar had sought the hand of Oddrun, Atli's sister, but
did not obtain it. He then married Glaumvor, and Hogni took Kostbera
to wife. Their sons were Solar, Snævar, and Giuki. When the Giukungs
came to Atli, Gudrun besought his sons to intercede for their lives,
but they would not. The heart of Hogni was cut out, and Gunnar was
cast into a pen of serpents. He struck his harp and lulled the
serpents, but an adder stung him to the liver.