Claude de Vin des Œillets, known as Mademoiselle des Œillets, (Provence

Provence

Provence ; Provençal: Provença in classical norm or Prouvènço in Mistralian norm) is a region of south eastern France on the Mediterranean adjacent to Italy. It is part of the administrative région of Provence-Alpes-Côte d'Azur...

 1637 - Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, May 1687), was a mistress of Louis XIV of France

Louis XIV of France

Louis XIV , known as Louis the Great or the Sun King , was a Bourbon monarch who ruled as King of France and Navarre. His reign, from 1643 to his death in 1715, began at the age of four and lasted seventy-two years, three months, and eighteen days...

 and a the companion of the official royal mistress and favorite Madame de Montespan. She was known for her involvement in the famous Affair of the Poisons (1679–1680).

Daughter of Nicolas de Vin and Louise Faviot, she became the trusted companion of Montespan. She had a child by the king, Louise Maisonblanche (1676–1718).
During the Affair of the Poisons, she was pointed out as the replacement of Montespan in the black masses. She was protected from any persecution by the monarch and Colbert

Colbert

Colbert is a common surname and rare given name of Old French and Old German origins; it was introduced to Britain by the Normans.Colbert most commonly refers to:*Stephen Colbert , American comedian and television show host...

, but the affair implicated Montespan and ruined the latter's relationship with the king.
Œillets retired from court in 1678 to a comfortable life in her Paris residence and country estate.

Sources