Otto Klemperer
Klemperer was born in Cologne, Germany, to a musical family but he said that he had little musical aptitude. His father was renowned conductor Otto Klemperer and his mother was soprano Johanna Geisler. He had a younger sister named Lotte (1923–2003). His father was Jewish by birth; he converted to Catholicism but later returned to Judaism. His mother was Lutheran. His grandfather was part of the Jewish community in Prague, and his grandmother was a Sephardic Jew from Hamburg, Germany. Otto Klemperer was a first cousin of Victor Klemperer.