She was born on January 30 , 1912 , the first daughter of the banker Maurice Wertheim and his Jewish wife Alma Morgenthau . She was born on 30 January 1912 as the first daughter of banker Maurice Wertheim and his Jewish wife Alma Morgenthau . She was born on January 30 , 1912 as the Jewish daughter of banker Maurice Wertheim and his first wife , Alma Morgenthau .