From Simon Weisenthal wiki--

In late 1941, Wiesenthal and his wife were transferred to Janowska concentration camp and forced to work at the Eastern Railway Repair Works. He painted swastikas and other inscriptions on captured Soviet railway engines, and Cyla was put to work polishing the brass and nickel. In exchange for providing details about the railways, Wiesenthal obtained false identity papers for his wife from a member of the Armia Krajowa, a Polish underground organisation. She travelled to Warsaw, where she was put to work in a German radio factory. She spent time in two labour camps as well. Conditions were harsh and her health was permanently damaged, but she survived the war. The couple was reunited in 1945, and their daughter Paulinka was born the following year.[23][24][25] Every few weeks, the Nazis staged a roundup in the Lvov ghetto of people unable to work. These roundups typically took place while the able-bodied were absent doing forced labour. In one such deportation, Wiesenthal's mother and other elderly Jewish women were transported by freight train to Belzec extermination camp and murdered in August 1942. Around the same time, a Ukrainian policeman shot Cyla's mother to death on the front porch of her home in Buczacz while she was being evicted. Between Cyla and Simon Wiesenthal, 89 of their relatives were murdered during the Holocaust.[26]