Wikipedia entry
Balthasar Klossowski de Rola (February 29, 1908 – February 18, 2001), best known as Balthus, was a Polish-French modern artist. Throughout his career, Balthus rejected the usual conventions of the art world. He insisted that his paintings should be seen and not read about, and he resisted any attempts made to build a biographical profile. A telegram sent to the Tate Gallery as it prepared for its 1968 retrospective of his works read: "NO BIOGRAPHICAL DETAILS. BEGIN: BALTHUS IS A PAINTER OF WHOM NOTHING IS KNOWN. NOW LET US LOOK AT THE PICTURES. REGARDS. B."
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Getty record
Information from Getty’s Union List of Artist Names ® (ULAN), made available under the ODC Attribution License