Sigurd, also known as Siegfried in Germanic tales, is a legendary hero from Norse mythology. He is best known for slaying the dragon Fafnir and obtaining the cursed treasure known as the Andvaranaut. Sigurd's story is a central part of the Völsunga saga, which chronicles the adventures and tragedies of his lineage. In addition to his dragon-slaying feats, Sigurd is famous for his relationship with Brünnhilde, a valkyrie. Their love story is filled with betrayal and tragedy, making it a poignant tale in the realm of heroic legends. Sigurd's character embodies bravery, loyalty, and the complexities of fate.