Jacques Collin De Plancy

Jacques Collin de Plancy (1793–1881), born in Plancy in northeastern France, was a French writer and compiler whose work grew out of the nineteenth century’s appetite for dictionaries, antiquarian learning, and accounts of the supernatural. He is best known for gathering material about demons, spirits, magic, and popular beliefs into reference works that made obscure lore accessible to a broad readership. Rather than writing as a systematic theologian, he ranged across older books, legends, and reported beliefs, preserving the variety of ways people had imagined the unseen world. His career also reflected a change in outlook: after an earlier period of freethinking, he became a Catholic, a shift relevant to the changing editions of his best-known work.

That work, the Dictionnaire infernal, appeared in several editions and grew into a wide-ranging collection of accounts concerning demons, apparitions, and occult practices. Readers can also explore titles such as Dictionnaire des reliques and Dictionnaire féodal, which show his interest in cataloguing the objects, customs, and beliefs of earlier times. Collin de Plancy’s approach is encyclopedic and anecdotal: he assembles striking details and competing traditions rather than shaping them into a single narrative. The result is useful both as a window onto supernatural lore and as a record of nineteenth-century curiosity about the past. If you enjoy books that browse through the strange and the historical, his works offer plenty of paths to follow.