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In page Thomas Mann:

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Mann was a member of the hanseatic Mann family and portrayed his family and class in his first novel, Buddenbrooks. His older brother was the radical writer Heinrich Mann and three of Mann's six children – Erika Mann, Klaus Mann and Golo Mann – also became significant German writers. When Adolf Hitler came to power in 1933, Mann fled to Switzerland. When World War II broke out in 1939, he moved to the United States, then returned to Switzerland in 1952. Mann is one of the best-known exponents of the so-called Exilliteratur, German literature written in exile by those who opposed the Hitler regime.[citation needed]