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Frater non frater, das ist: Eine hochnotdürfftige Verwarnung an die gottselige, fromme Discipul der H. gebenedeyten Societet des Rosencreutzes
No prior complete English translation of this text has been found.
No English translations of Friedrich Grick's (writing as Irenaeus Agnostus) 1619 work 'Frater non Frater' (Brother Not Brother) were found in any major scholarly catalogs or databases. This text is a niche 17th-century Rosicrucian polemic, and while foundational Rosicrucian manifestos have been translated, secondary polemical works of this period by Grick typically remain in their original Latin or German.
Verified Mar 7, 2026 via local catalogs, ustc, local catalogs, ustc, google books, google books, open library, open library · methodology
Step into the heart of the 17th-century Rosicrucian furor with an urgent warning that peels back the veil of the 'Invisible College.' Are these brothers holy disciples or dangerous impostors? Friedrich Grick issues a biting, sharp-witted critique that defines the razor-thin line between spiritual truth and alchemical deception.