On 27 February 1920, a young woman attempted to commit suicide in Berlin by jumping off the Bendlerstrasse bridge into the Landwehrkanal. She was rescued by a police sergeant and was admitted to the Elisabeth Hospital on Lützowstrasse. As she was without papers and refused to identify herself, she was admitted as "Fräulein Unbekannt" ("Miss Unknown") to a mental hospital in Dalldorf (now Wittenau, in Reinickendorf), where she remained for the next two years. The unknown patient had scars on her head and body and spoke German with an accent described as "Russian" by medical staff.