Johannes' paternal grandfather was a doctor of medicine, whereas his uncle Hans Eleonardus was a ship-owner.
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Johannes' inclination towards the humanities stemmed from his father, who had befriended the likes of Henrik Steffens, Friedrich Wilhelm Joseph Schelling and Friedrich Leopold zu Stolberg-Stolberg and also converted to Catholicism.
The author Johannes Moller wrote in his biography of North German writers, Cimbria Literata (printed in 1744), that Knutzen had died in an Italian monastery, but that was probably only an invention made up to discredit both Knutzen and the Roman Catholic church.
Johannes Vermeer | Johannes Kepler | Johannes Gutenberg | Johannes Peter Müller | Johannes Ockeghem | Johannes Rau | Johannes Müller | Johannes Heesters | Johannes Zukertort | Johannes Meursius | Cornelis Johannes van Houten | Johannes Meyer | Johannes Itten | Johannes Blaskowitz | Lillian Moller Gilbreth | Johannes von Lahnstein | Johannes Mötsch | Johannes Hevelius | Johannes Ciconia | Johannes von Trapp | Johannes von Müller | Johannes Ullrich | Johannes Trithemius | Johannes Theodor Reinhardt | Johannes Magnus | Johannes Leimena | Johannes Ghiselin | Johannes Gad | Johannes Ewald | Johannes Diderik van der Waals |