marquis de (1740-1814) French philosopher and writer whose descriptions of sexual perversion gave rise to the term 'sadism'; author of Justine and Philosophy in the bedroom.
Comte de known as the Marquis de Sade (1740)
French writer. He was imprisoned for sexual offenses and finally committed to an asylum. He wrote plays and novels dealing explicitly with a variety of sexual practices, including sadism, deriving pleasure or sexual excitement from inflicting pain on others.