Marie Françoise Catherine de Beauvau, Marquise of Boufflers, commonly known as Madame de Boufflers, was a French noblewoman. She was the royal mistress of Stanislas Leszczyński and mother of the poet Stanislas de Boufflers. Wikipedia
Born: December 8, 1711, Lunéville, France
Died: July 1, 1786 (age 74 years), Scey-sur-Saône-et-Saint-Albin, France
Great-grandparents: Catherine d'Haraucourt, Henriette de Gournay, François de Ligny, Vicomte du Charmel, and more
Grandfather: Louis I de Beauvau, Marquis de Beauvau
Parents: Marc de Beauvau, 1st Prince of Craon
Spouse: Louis François de Boufflers