Claude-Louis de Saint-Germain, also known as Claude Louis, Comte de Saint-Germain (1707–1778), was a French diplomat, soldier, and adventurer. He is best known for his mysterious persona and his alleged longevity, with claims that he possessed esoteric knowledge and supernatural abilities. Saint-Germain's origins are obscure, and his early life is shrouded in mystery, leading to various legends and speculations about his background. He served in various capacities, including as a diplomat and spy for several European courts, and was renowned for his charm, intelligence, and extensive knowledge of the arts and sciences. In Hebrew, his name can be translated as קלוד-לואי דה סן-ז'רמן. In French, his name remains Claude-Louis de Saint-Germain, while in German, it is Claude-Louis de Saint-Germain. His life and exploits have been the subject of much fascination and intrigue, contributing to his enduring legacy as one of the most enigmatic figures of the 18th century.