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
Coronation of Napoleon I or witnessing the civil oath that followed, due to its contents. With his hands on the Bible, Napoleon took the oath: I swear to maintain the integrity of the territory of the Republic, to respect and enforce respect for the Concordat and freedom of religion, equality of rights, political and civil liberty, the irrevocability of the sale of national lands; not to raise any tax except in virtue of the law; to maintain the institution of Legion of Honor and to govern in the sole interest, happiness and glory of the French people. The text was presented to Napoleon by