Françoise Marie de Bourbon

Françoise Marie de Bourbon (Légitimée de France; 4 May 1677 – 1 February 1749) was the youngest illegitimate daughter of King Louis XIV of France and his maîtresse-en-titre, Madame de Montespan. At the age of 14, she married her first cousin Philippe d'Orléans, the future regent of France during the minority of Louis XV. Through two of her eight children, she became the ancestress of several of Europe's Roman Catholic monarchs of the 19th and 20th centuries—notably those of Belgium, Italy, Portugal, Spain, and France.

Françoise Marie wielded little political influence. In 1718, she participated in the botched Cellamare Conspiracy, during which the conspirators orchestrated to oust her husband as regent in favour of her brother Louis Auguste, Duke of Maine.