Françoise d'Aubigné, Marquise de Maintenon (November 27, 1635 – April 15, 1719) was a prominent French figure known for her influence at the court of Louis XIV. Born into a declining noble family, she overcame a difficult childhood and entered court life as a governess. She secretly married Louis XIV after the queen's death and became a key advisor. She founded the Maison royale de Saint-Louis, a school for noble girls, and promoted religious piety and moral reform. Her legacy remains complex, blending educational innovation with political influence.