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
William I of Württemberg Napoleon I and uncle of French Emperor Napoleon III. "United Kingdom": The British royal family were relatives of William's maternal grandmother Princess Augusta, the elder sister of King George III. George III's eldest daughter Charlotte, was the second wife of Frederick I of Württemberg and thus his stepmother. "Netherlands": Sophie, William's second daughter from his marriage to Catherine, married in 1839 her cousin, William, prince of Orange, who in 1849 became King of the Netherlands. William III was the son of Catherine's sister Anna Pavlovna of Russia. On 8 June 1808, in Munich, he married Caroline Augusta (1792–1873), daughter of