Origin of the name Brynhildr

Old Norse cognate of Brünhild. In the Norse legend the 'Volsungasaga' Brynhildr was rescued by the hero Sigurd in the guise of Gunnar. Brynhildr and Gunnar were married, but when Sigurd's wife Gudrun let slip that it was in fact Sigurd who had rescued her, Brynhildr plotted against him. She accused Sigurd of taking her virginity, spurring Gunnar to arrange Sigurd's murder.