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In page Kurt Weill:

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Caesar's younger brother was Gustav Hochstetter (born May 12, 1873, Mannheim – died 1942, Theresienstadt concentration camp), Professor of Literature at the University of Brussels, writer and poet and friend of Wilhelm Busch. His second cousin was the childhood prodigy pianist, Lisy Fischer (born August 22, 1900, Zürich, Switzerland – died June 6, 1999, Newcastle upon Tyne, England).[citation needed]