Born in Paris in 1738 she was the only daughter of Jean Béraud de La Haye de Riou, Seigneur of la Gauvrillère and Josefa Minard. Her father was from an old Breton family, she first married a seventy-year-old widower Jean Baptiste de Montesson, Marquis of Montesson on 11 October 1757 who died in 1769. Her beauty and intelligence attracted the attention of the widowed Louis Philippe d'Orléans who she secretly married in 1773 with the authorisation of King Louis XV. After her marriage to the Louis Philippe, Duke of Orléans, a member of the royal family and a Prince du Sang, her low rank did not allow her the title of Duchess of Orléans, nor having the rank of a Princess of the blood. During the French Revolution, she was arrested and imprisoned in the Temple Prison in Paris. She eventually died in Paris aged 67. She was buried at the Église Saint-Roch, Paris.