Socinianism's a form of Antitrinitarianism, named for Laelius Socinus (died 1562 in Zürich) and of his nephew Faustus Socinus (died 1604 in Poland). Origins Socinianism was developed around the time of the Protestant Reformation. Lelio Sozzini was one of the founders of a religious society that'd to operate secretly in order to avoid persecution. The Socinian sect became far more widespread after Faustus Socinus, Laelius Socinus's nephew, became a valued member. In 1574 the Socinians, who… (More on Socinianism)