Sophie de Brégis, comtesse d'Averne (fl.
She was the official mistress of Philippe II, Duke of Orléans, who was the regent of France during the minority of the infant King Louis XV of France.
She married comte Ferrand d'Averne, who though a nobleman was a poor lieutenant of the royal guard.
The regent arranged a big party to her honor at 30 July 1721 at the Château de Saint-Cloud which attracted great attention to their relationship, which became a big scandal which was mocked in libelous literature.
The regent dismissed her before the end of 1721, allegedly because she was unfaithful with the duc de Richelieu.