Siegfried von Galen is a character from the Fate series, known for his role as a Saber-class Servant. He is a legendary hero from Germanic mythology, often associated with the epic poem 'Nibelungenlied'. In the Fate series, Siegfried is summoned to participate in the Holy Grail War, where he demonstrates his exceptional swordsmanship and noble nature. Despite his immense strength and combat skills, Siegfried is characterized by his humility and selflessness, often prioritizing the well-being of others over his own desires. His iconic weapon is the sword Balmung, and he is visually recognized by his dragon-slayer armor.