
Émile Boirac was a French philosopher, parapsychologist, promoter of Esperanto and writer.

Eugène Léon Canseliet, was a French writer and alchemist. He was a student of the mysterious alchemist known as Fulcanelli. He wrote the preface for each of his master's books. Later in his life after his master departed from this world, he took a quiet life in France and continued to study and practice what Fulcanelli taught him, even taking on students.

Antoine Court, who named himself Antoine Court de Gébelin, was a former Protestant pastor, born at Nîmes, who initiated the interpretation of the Tarot as an arcane repository of timeless esoteric wisdom in 1781.

Gérard Anaclet Vincent Encausse, whose esoteric pseudonym was Papus, was a Spanish-born French physician, hypnotist, and popularizer of occultism, who founded the modern Martinist Order.

Henri Antoine Jules-Bois, was a French writer with an interest in the occult.

Éliphas Lévi Zahed, born Alphonse Louis Constant, was a French sage, poet, and author of more than twenty books about magic, kabbalah, alchemical studies, and occultism. Considered the greatest occultist of the nineteenth century, he followed the ecclesiastical career in the Catholic Church until, with a particularly great struggle, at the age of 26, he quit the priestly path. Only much later in his life, at the age of 40, did he attain the knowledge of the occult, also becoming a ceremonial magician.

Michel de Nostredame, usually Latinised as Nostradamus, was a French astrologer, physician and reputed seer, who is best known for his book Les Prophéties, a collection of 942 poetic quatrains allegedly predicting future events. The book was first published in 1555.