The person Erika Rosenberg wrote a biography of was married to whom?
Erika Rosenberg Erika Rosenberg (born 24 June 1951 in Buenos Aires, Argentina) is an author, interpreter and journalist. She wrote a biography of Emilie Schindler.
Helen Schnabel Helen Schnabel, "née" Fogel, (22 July 1911 – 29 September 1974) was an American pianist. She was married to the pianist Karl Ulrich Schnabel.