Frinellan, the pseudonym of Simon-François Blocquel (1780–1863), was a French printer-bookseller, publisher, and author based in Lille. Active during the first half of the 19th century, he participated in publishing numerous popular works and was also interested in magic, demonology, and occult traditions. In particular, he worked with the bookseller Jean-Baptiste Castiaux at the Blocquel-Castiaux publishing house, an important Lille publishing business of its time.
Under the name Frinellan, he published in 1847 the Complete Manual of the Demonomaniac, or The Ruses of Hell Revealed, also known as the Triple Infernal Vocabulary. This work compiles, in reference-book form, extensive documentation on demons, apparitions, magical practices, divination, and authors who wrote about the occult sciences. With its encyclopedic character, it is now a characteristic example of popular esoteric literature of the 19th century.
