Karl Haushofer
A fellow student in geopolitics was Rudolf Hess, a very early follower of Adolf Hitler and close friend of his Haushofer's father, Karl. Karl Haushofer was a frequent visitor to Landsberg Prison, where Hitler and Hess were jailed after the failed 1923 Beer Hall Putsch and "Mein Kampf" was written. Later, under the Nuremberg Laws of 1935 (effective from 1936), Albrecht Haushofer was categorized as a "Mischling;" however Hess, Deputy Führer since 1933, succeeded in having him issued a German Blood Certificate.