Much has been written about the Marquis de Sade (1740-1814), the flamboyant aristocrat whose years indulging in sexual aberrations inspired his celebrated works 120 Days of Sodom and Justine -- and landed him in the Bastille. However, scant attention has been paid to the two women who were closest to him: Renee Pelagie de Sade, his adoring wife, and his powerful mother-in-law, Madame de Montreuil.Francine du Plessix Gray draws on thousands of pages...