Note 6 — The First Lay of Helgi Hundingsbane
Henry Adams Bellows translation
Sigmund: the chief link between the Helgi and Sigurth stories. He was the son of Volsung, great-grandson of Othin. His children by his first wife, Borghild, were Helgi and Hamund (belonging to the Helgi cycle); his son by his second wife, Hjordis, was Sigurth. An incestuous connection with his sister, Signy (cf. Wagner’s Siegmund and Sieglinde) resulted in the birth of Sinfjotli (cf. Fra Dautha Sinfjotla and note).