The Nibelungenlied is a German epic poem from around 1200 AD. It tells the story of the dragon-slayer Siegfried and his wife Kriemhild. Siegfried helps the king Gunther win the hand of Brunhild, but is later betrayed and murdered by Hagen. Kriemhild marries Attila the Hun and takes revenge against the Burgundians by luring them to a feast and killing them, including Hagen who stole her treasure. Her actions lead to further bloodshed and deaths until she herself is finally killed by Hildebrand.