Infamous French courtesan (1743–1793) who was the last mistress of Louis XV. Accused of aiding emigres from the Revolution, she was imprisoned, tried, and executed during the Reign of Terror. LS in French, signed “Le Comtesse du Barry,” one page, 6 x 8, February 2, 1783. Untranslated letter signed at the conclusion by du Barry. Uniform block of toning over text and signature, two ink lines through signature, scattered toning and soiling, and mounting remnants to reverse, otherwise very good condition. RRAuction COA.