Brynhildr was a princess, a Shield-maiden, and was said to be a Valkyrie who disobeyed Odin. Stripped of her Valkyrie powers, she was put into a deep slumber, on a castle on top of a mountain surrounded by a magic fire, and can only awakened by a brave man with a kiss, which she was by Sigurd, the dragon slayer. With Sigurd, she had a daughter; Aslaug.