, born on 3rd October 1900 in Elberfeld, died on 19th May 1945 in Elberfeld. She was the daughter of Emil Müller and Frieda Knapp and had one brother Kurt, Robin and Katya Müller's grandfather. She married Fritz Polstorff in 1929.
Left: Fritzi (r.) at her wedding with Fritz Polstorff (the girl in front of them is Gisela Wolf, her youngest cousin). Fritz Polstorff (also right picture) was a psychiatrist and neurologist (specialized in the treatment of epilepsia and multiple sclerosis). During the 2nd world war for his christian beliefs he refused to take part in the Nazi Euthanasia program, which was to be executed in the hospital where he worked. In consequence he was sent to the Russian war front after that.
Fritzi worked as a nurse before she married (see below).