The Confessio Fraternitatis, or simply The Confessio, printed in Kassel in 1615, is the second anonymous manifestos, of a trio of Rosicrucian pamphlets, declaring the existence of a secret brotherhood

Jan van Rijckenborgh was a Dutch-born mystic and founder of the Lectorium Rosicrucianum, a worldwide esoteric Rosicrucian movement.