Friedrich Pfeffer was a son of Ignatz Pfeffer and Jeanet Hirsch. He married Vera Bythiner, with whom he had a son who survived the war. After he divorced his first wife he had a catholic girlfriend. End 1938 they fled to the Netherlands.
N. van der Zee, The roommate of Anne Frank (Aksant 2002)
Friedrich Pfeffer (also known as Fritz) was a dentist. Thanks to one of his patients, he could go into hiding. In the fall of 1942 he became the eighth person in hiding at Prinsengracht 263.
More information on Friedrich Pfeffer and his hiding place can be found on the site of the Anne Frank House.
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