Princess Henrietta of England (Henrietta; 16 June 1644 (26 June n.s.) – 30 June 1670) was born a Princess of England and Scotland as the youngest daughter of King Charles I of England and his consort Henrietta Maria of France. Fleeing England with her governess at the age of three, she moved to the court of her first cousin Louis XIV of France, where she was known as Minette. After she married Philippe of France, brother of King Louis XIV, known as Monsieur at court, she became known as Madame. Very popular with the court in no small part due to her flirtatious nature, her marriage was marked by frequent tensions. Henrietta was instrumental in negotiating the Secret Treaty of Dover prior to her unexpected death in June 1670. Jacobite claims to the throne of Great Britain following the death of Henry Benedict Stuart descend from her through her daughter Anne Marie, Queen of Sardinia.
Princess Henrietta was born at Bedford House in Exeter on 16 June 1644, on the eve of the Second Battle of Newbury during the English Civil War. Her father was King Charles I of England, her mother the youngest daughter of Henry IV of France and Marie de' Medici.