[4] At the age of ten, she was introduced by her grandmother to Jean-Jacques Rousseau, who recorded the encounter in Confessions and described the young girl as "...a charming person.

[10] Despite the failure of her marriage, the new Duchess of Lauzun became known throughout French high society for her intelligence, prettiness and charmingly shy manners.

She was befriended by Béatrix de Choiseul-Stainville, while her enormous personal wealth ensured that she became a leader of high fashion, particularly the Pouf style.

De Boufflers followed the Encyclopédistes and, like other princesses combinées, was known at court for her discretion and intellectual insight as a salonnière.

Owing to her intimate association with the royal court, de Boufflers became a subject of suspicion after the French Revolution in 1789.