Donatien Alphonse François de Sade

English: Donatien Alphonse François de Sade, better known as the Marquis de Sade (June 2, 1740 – December 2, 1814), was a French aristocrat and writer of philosophy-laden and often violent pornography, as well as some strictly philosophical works; much of his writing was done while in prison. His name is the source of the word sadism.

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  Portrait by Van Loo
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  Portrait by Van Loo
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  Imaginary portrait by H. Biberstein

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  Juliette, Dutch printing, 1800
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  Juliette
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  Justine
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  120 Days of Sodom