Engraving of a Vigée Le Brun Portrait The Princess de Lamballe was born in 1749. She was married to Louis Stanislas, the Prince de Lamballe (1747-68), the brother of Louise Marie Adélaïde de Penthièvre (the future Duchesse de Chartres). She was widowed at the age of 19. The Princess de Lamballe died on 3 Sept 1792 in Paris after she returned from England to help her queen. She was decapitated and her body was lacerated.