H%C3%A9l%C3%A8ne van Zuylen
Baroness Hlne van Zuylen van Nijevelt van de Haar or Hlne de Zuylen de Nyevelt de Haar, ne de Rothschild , was a French socialite, author, a sporting figure in Parisian life and a member of the prominent Rothschild banking family of France.
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Source: Wikipedia