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Marie Anne de Coislin (1732-1817), was a French aristocrat, known as the mistress to Louis XV of France in 1755. She was the king's Petite maîtresse (unofficial mistress), not his Maîtresse-en-titre (official mistress).

She was the daughter of the marquis Louis de Mailly (1696-1767) and the lady-in-waiting Anne Françoise Elisabeth Arbaleste de Melun and married in 1750 to the duke Charles Georges René du Cambout de Coislin (d. 1771), but they separated early on and she moved back with her parents.

In 1755, Louis François, Prince of Conti launched her as his candidate to replace Madame de Pompadour as official mistress of the king. She was the first serious candidate to be put up against Madame de Pompadour since Charlotte Rosalie de Choiseul-Beaupré, and she was also to be the last. She did succeed to be the secret lover of the king, which attracted some attention at court. She became known as l'altière Vasthi. Ultimately, however, the plot failed, and she was ousted from court by Madame de Pompadour. After this, there was no more serious rival to replace Madame de Pompadour, and the king mainly settled with his unofficial lovers at the Parc-aux-Cerfs.

Marie Anne de Coislin had affairs with the Prince de Conti and the count de Coigny, and was claimed to have had affairs with Christian VI of Denmark, Gustav III of Sweden and Peter III of Russia. It is unknown if these rumours where true, but Christian VI and Gustav III did visit her during their visits to Paris, which attracted attention at the time.

She did not leave France during the French Revolution, but lived as a servant in Rouen, Brittany and Vendée during the Reign of Terror. After the fall of Robespierre, she resumed her former life and property. She remarried in 1793 to Louis-Marie duc de Mailly (d. 1795).

Marie Thérèse Françoise Boisselet (1731 – 1800) was a petite maîtresse of King Louis XV of France.

Boisselet was born to Pierre Sulpice Boisselet and Marie Thérèse Carouailles. Her father was an employee of the king's kitchen staff, with the title 'Contrôleur de la Bouche du Roi et chef du gobelet de Mme la Dauphine'. Marie Thérèse Françoise Boisselet was described as a beauty, and she agreed to become the lover of the king. The affair was not an official one; she was recruited to be a petite maîtresse (unofficial mistress) of the king in Parc-aux-Cerfs. She had one child with the king, Charles Louis Cadet de Gassicourt (1769–1821).

In 1771, she married the chemist Louis Claude Cadet de Gassicourt, who adopted her son. According to Paul Thiébault, Louis XV benefitted the career of Cadet de Gassicourt in the Royal Academy because of his marriage to his former lover.

Marie Catherine Éléonore Bénard (Catherine Éléonore Bernard; 1740 – 23 February 1769) was a French lady-in-waiting and alleged petite maîtresse to King Louis XV of France in 1768-69.

Jeanne du Barry, ursprungligen Marie-Jeanne Bécu, född 19 augusti 1743 i Vaucouleurs, Meuse, död 8 december 1793 på Place de la Révolution, Paris (avrättad), var en fransk kurtisan. Hon var Ludvig XV:s mätress efter Madame de Pompadours död, från 1769 till 1774.