Louise-Élisabeth de Croÿ was a French noblewoman and courtier, as the Marquise of Tourzel. She was the Governess of the Children of France from 1789 until 1792. Decades after the French Revolution, Louise-Élisabeth published her memoirs, which presented a unique perspective on the royal family during the French Revolution. She later acquired the title of duchess.

The House of Croÿ is a family of European mediatized nobility, which held a seat in the Imperial Diet from 1486, and was elevated to the rank of Princes of the Holy Roman Empire in 1594. In 1533 they became Dukes of Arschot and in 1598 Dukes of Croy in France. In 1913, the family had branches in Belgium, France, Austria and Prussia.