Guðrúnarkviða II, The Second Lay of Gudrún, or Guðrúnarkviða hin forna, The Old Lay of Gudrún is probably the oldest poem of the Sigurd cycle, according to Henry Adams Bellows.

Gudrun or Kriemhild is the wife of Sigurd/Siegfried and a major figure in Germanic heroic legend and literature. She is believed to have her origins in Ildico, last wife of Attila the Hun, and two queens of the Merovingian dynasty, Brunhilda of Austrasia and Fredegund.