House of Bourbon-Montpensier

La Grande Mademoiselle was the last of the official line of the House of Bourbon-Montpensier. She held the title in her own right as it was from her mother. It went to the wife of her cousin Elizabeth Charlotte, Princess Palatine.
Elizabeth Charlotte, Princess Palatine, the wife of Philippe de France duc d'Orléans duc de Montpensier

The House of Bourbon-Montpensier or Maison de Bourbon-Montpensier was a semi royal family. The name of Bourbon comes from a marriage between Marie de Valois, comtesse de Montpensier (1375–1434) who married Jean de Bourbon - the duc de Bourbon. The second name of Montpensier, comes from the title of the family.

The Bourbon-Montpensier family were the founders of the vast wealth that would later be enjoyed by the House of Orléans and their cousins the Bourbon-Penthièvres.