 Amand-Marie-Jacques de Chastenet, Marquis of Puységur

Although Amand-Marie-Jacques de Chastenet, Marquis de Puységur (1751–1825) was a French magnetizer aristocrat from one of the most illustrious families of the French nobility, he is now remembered as one of the pre-scientific founders of hypnotism (a branch of animal magnetism, or Mesmerism).The Marquis de Puységur learned about Mesmerism from his brother Antoine-Hyacinthe, the Count of Chastenet.