The Book of Saint Cyprian (Portuguese: Livro de São Cipriano, Spanish: Libro de San Cipriano) refers to different grimoires from the 17th, 18th, and 19th centuries, all pseudepigraphically attributed to the 3rd century Saint Cyprian of Antioch (not to be confused with Saint Cyprian the bishop of Carthage). According to popular legend, Cyprian of Antioch was a pagan sorcerer who had converted to Christianity.[1][2][3]