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In page Melanie Klein:

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At the age of 21, she married an industrial chemist, Arthur Klein, and soon after gave birth to their first child, Melitta. Klein then had her second child, Hans, in 1907 and her third and final child, Erich, in 1914. After having those two additional children, Klein suffered from clinical depression as these pregnancies took a toll on her. This and her unhappy marriage soon led Klein to seek treatment. Shortly after her family moved to Budapest in 1910, Klein began a course of therapy with psychoanalyst Sándor Ferenczi. It was during their time together that Klein developed an interest in the study of psychoanalysis.[citation needed]