Adelheid Arndt: Adelheid Arndt. Actress: 1+1=3. Adelheid Arndt was born on 3 January 1952 in Heidelberg, Germany. She is an actress, known for 1+1=3 (1979), Rosa Luxemburg (1986) and Bismarck (1990).
Known For: 1+1=3 (Katerina Arendt), Rosa Luxemburg (Luise Kautsky), Bismarck (Johanna von Bismarck), Der Mädchenkrieg (Sophie)