Marie d'Orléans was the daughter of Henry II of Orléans, duke of Longueville

Henri II d'Orléans, duc de Longueville

Henri II d'Orléans, duc de Longueville or Henri de Valois-Longueville , a legitimated prince of France and peer of France, was a major figure in the civil war of France, the Fronde, and served as governor of Picardy, then of Normandy.Longueville headed the French delegation in the talks that led...

. After the death of her brother Jean Louis Charles d'Orléans-Longueville in 1694 she succeeded him as Princess of Neuchâtel.

Through her marriage with Henri II, Duke of Nemours, she became Duchess of Nemours. She is a famous personage. At an early age she was involved in the first Fronde

Fronde

The Fronde was a civil war in France, occurring in the midst of the Franco-Spanish War, which had begun in 1635. The word fronde means sling, which Parisian mobs used to smash the windows of supporters of Cardinal Mazarin....

, which was directed by her father and her stepmother Anne Genevieve de Bourbon-Conde, the celebrated duchesse de Longueville. She married the Duke of Nemours

Henri de Savoie, 7th Duc de Nemours

Henri de Savoie was the seventh Duc de Nemours , and was also Count of Geneva.Henri, as the third son of Henri de Savoie, 4th Duc de Nemours, was not expected to succeed to the dukedom and entered the priesthood. By 1651, he had become Archbishop of Reims...

in 1657, and when he died in 1659, leaving her childless, the rest of her life was mainly spent in contesting her inheritance with her stepmother.

She left some interesting Memoires, which are published by C. B. Petitot in the Collection complete des memoires (1819–1829).