Jeanne-Agnes Berthelot de Pleneuf, marquise de Prie

Jeanne-Agnes Berthelot de Pleneuf, marquise de Prie (born 1698, Paris, France—died October 7, 1727, Courbépine) was a French adventuress during the reign of Louis XV. The daughter of an unscrupulous financier, Étienne Berthelot, she was married at age 15 to Louis, marquess de Prie, and went with him to the court of Savoy at Turin, where he was ambassador. She was 21 when she returned to France and was soon the declared mistress of Louis-Henri,...