Marianne Camasse, pictured here, was a dancer who caught the fancy of Christian IV of Pfalz-Zweibrücken. With a little help from the Marquise de Pompadour, she was named Countess of Forbach. The picture was accompanied by this text: "Her full name was Marie Jeanne Françoise Camasse or Gamache. Her father was named Jean Baptiste Camasse sometimes, but also Jean Baptiste Gamache. Her mother was named Eléonore Roux. I don´t know if they were huguenots. As far as I know, Jean Baptiste and Eléonore were actors. Eléonore was delivered from her baby Marie Jeanne Françoise, 'Marianne,' when the couple was settled for a while in Strassbourg. After the childbirth, they returned to Mannheim. Little Marianne became a good ballerina, she danced classical ballets when she caught the eye of Christian. The man was twelve years older than the girl, aged sixteen. For a time, Marianne received a good education payed with the founds of Christian. When she had became a sophisticated enough young lady, the duke married her morganatically. Stanislas Leczinski, who had been briefly king of Poland and was at this time duke of Lorraine, granted to Marianne the tittle of countess of Forbach. She was also in good terms with the powerful Madame Pompadour, mistress of Stanislas´s son-in-law the king Louis XV of France. A few decades later, she was also friendly with Marie Antoinette.Marianne had six children, four sons (Christian, Philipp, Karl Ludwig and Julius August) and two daughters (Maria Anna and Elisabeth). Two of the sons made good careers in the french army, and one of them fought in the american independence war. Marianne lived in Paris, but she spent a lot of time in her castle of Forbach."
Her French Wikipedia article is here.
Posted to the Alexander Palace Time Machine Discussion Forum Wittelsbachs pics thread, Reply no. 1 (with the narrative) by Yseult.