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In page Lisa Fittko:

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Lisa Fittko was born into an international Jewish family (Simon, Ekstein) in 1909 in Uzhhorod, Ung County, Kingdom of Hungary. Her large family was active in many spheres of cultural and economic life of the Austro-Hungarian Empire. One branch of her family was active in the Czech national movement, others were prominent industrialists and patrons of the arts. Johann Strauss II, the "Waltz King" was an in-law.[citation needed] She grew up in the company of her aunt Malva Schalek.