From the Old Norse name
Sigurðr, which was derived from the elements
sigr "victory" and
varðr "guardian". Sigurd was the hero of the Norse legend the 'Volsungasaga', which tells how his foster-father Regin sent him to recover a hoard of gold guarded by the dragon Fafnir. After slaying the dragon Sigurd tasted some of its blood, enabling him to understand the language of birds, who told him that Regin was planning to betray him. In a later adventure, Sigurd disguised himself as
Gunnar (his wife
Gudrun's brother) and rescued the maiden
Brynhildr from a ring of fire, with the result that Gunnar and Brynhildr were married. When the truth eventually came out, Brynhildr took revenge upon Sigurd. The stories of the German hero
Siegfried were in part based on him.