Note 247 — Chapter VIII · THE USE OF FICTION IN THE HEROIC POEMS.
Reading edition
The story may have come to the North in two different forms, one of which related the wooing of Brynhildr by Sigurðr, while the other, a later form, contained the incident of the supernatural disguise. But it is also possible that even the original poem or poems on the subject dealt with this incident, though without altogether suppressing the previous relations between Sigurðr and Brynhildr.