Napoleon II Napoleon II Napoléon François Charles Joseph Bonaparte (20 March 181122 July 1832), Prince Imperial, King of Rome, known in the Austrian court as Franz from 1814 onward, Duke of Reichstadt from 1818, was the son of Napoleon I, Emperor of the French, and his second wife, Archduchess Marie Louise of Austria. By Title III, article 9 of the French Constitution of the time, he was Prince Imperial, but he was also known from birth as the King of Rome, which Napoleon I declared was the courtesy title of the heir apparent. His nickname of L'Aiglon ("the Eaglet") was awarded posthumously
Napoleon II Françoise Le Tellier de Montesquiou, a descendant of François-Michel le Tellier, Marquis de Louvois, who was named Governess of the Children of France. Affectionate and intelligent, the governess assembled a considerable collection of books intended to give the infant a strong grounding in religion, philosophy, and military matters. As the only legitimate son of Napoleon I, he was already constitutionally the Prince Imperial and heir apparent, but the Emperor also gave his son the style of King of Rome. Three years later, the First French Empire collapsed. Napoleon I saw his second wife and their son for the last time