Murdered by the Nazi regime.

Sources differ regarding her date of birth: her son (whom I am inclined to believe) says 30/10/1855 in his testimonial to her; the Holocaust Survivors and Victims Database says 01/01/1855 (which may be a default date if only the year was known); the JRI-Poland record of her marriage in September 1874 says she was 18 years old so born between September 1855 and September 56.