Amandine Aurore Lucile Dupin , later Baroness ( French : baronne ) Dudevant ( July 1 , 1804 -- June 8 , 1876 ) , best known by her pseudonym George Sand ( Ê ' É '' Ê Ê ' sÉ ` Ì d ) , was a French novelist and feminist . Amantine ( also `` Amandine '' ) Lucile Aurore Dupin , later Baroness ( French : baronne ) Dudevant ( Paris , 1 July 1804 -- 8 June 1876 ) , best known by her pseudonym George Sand , was a French novelist and memoirist .