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Who was John von Neumann’s first wife?
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John von Neumann
John von Neumann (right).
John von Neumann’s first wife was Mariette Koevesi, whom he married in 1930. The couple had one child, Marina, who later became a prominent economist. Their marriage ended in divorce in 1937 after Mariette fell in love with physicist Horner Kuper; the separation was amicable, and they arranged for Marina to spend her teenage years with her father.1