Jacob attended Gymnasium schools in Berlin and Vienna, obtaining his Abitur school-leaver's qualification from the Ascanian high school in Berlin, under the tutelage of the noted philosopher Otto Friedrich Gruppe.
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At the 11th international congress of the literary organization P.E.N., held in Dubrovnik, Jacob joined fellow writers Raoul Auernheimer and Paul Frischaue in vocal opposition to Nazism, and contributed to the fracturing of the Austrian chapter of P.E.N. His books were banned under the Nazi regime, but remained in print via Swiss and Dutch exile publishers.
Jacob | Heinrich Himmler | Eduard Shevardnadze | John Jacob Astor | Heinrich Heine | Jacob M. Appel | Heinrich Schütz | Jacob Epstein | Jacob Zuma | Jacob Obrecht | Johann Heinrich Pestalozzi | Heinrich von Kleist | Heinrich Böll | Jacob Lawrence | Jacob Appel | John Jacob Astor IV | Irène Jacob | Heinrich Isaac | Heinrich Marschner | Baron Hans Heinrich Thyssen-Bornemisza | Jacob Jordaens | Paul Jacob | Heinrich Mann | Heinrich Hertz | Heinrich Graetz | Heinrich Böll Foundation | Christian Heinrich Friedrich Peters | Wilhelm Heinrich Roscher | Meshullam ben Jacob | Johann Heinrich Lambert |