What 18th-century French nobleman and author of transgressive works like "Justine" is the namesake of the psychological term for deriving pleasure from the pain of others?

Marquis de Sade

The word 'sadism' derives from Sade’s name and came to denote sexual pleasure linked to cruelty. Sade spent about 27 years confined in prisons and Charenton asylum, writing works including 'Justine' during his confinement.