Bernhard Förster  Bernhard Förster (31 March 1843 – 3 June 1889) was a German teacher. He was married to Elisabeth Förster-Nietzsche, the sister of the philosopher Friedrich Nietzsche. Förster became a leading figure in the anti-Semitic faction on the far right of German politics and wrote on the Jewish question, characterizing Jews as constituting a "parasite on the German body".