"니벨룽겐의 노래" (Nibelungenlied) is a medieval German epic poem that tells the story of the hero Siegfried, his marriage to Kriemhild, and the tragic events that follow. The poem is composed of 39 sections and is written in Middle High German, reflecting the culture and values of the time. The narrative explores themes of love, betrayal, and revenge, culminating in a series of conflicts among the characters. Key figures include Gunther, Hagen, and Brunhild, whose actions lead to a catastrophic downfall. The work is considered a cornerstone of German literature and has influenced various adaptations in art and music.