Napoleon II mother Marie Louise I, Duchess of Parma
Napoleon II (Napoléon François Joseph Charles Bonaparte; 20 March 1811 – 22 July 1832) was the disputed Emperor of the French for a few weeks in 1815. The son of Emperor Napoleon I and Marie Louise of Austria, he had been Prince Imperial of France and King of Rome since birth.  After the fall of his father, he lived the rest of his life in Vienna and was known in the Austrian court as Franz, Duke of Reichstadt  for his adult life (from the German version of his second given name, along with a title he was granted by the Austrian emperor in 1818).  He was posthumously given the nickname L'Aiglon ("the Eaglet") after the popular Edmond Rostand play, L'Aiglon.
When Napoleon I tried to abdicate on 4 April 1814, he said that his son would rule as emperor. However, the coalition victors refused to acknowledge his son as successor, and Napoleon I was forced to abdicate unconditionally some days later. Although Napoleon II never actually ruled France, he was briefly the titular Emperor of the French after the second fall of his father.  He lived most of his life in Vienna and died of tuberculosis at the age of 21.
His cousin, Louis-Napoléon Bonaparte, founded the Second French Empire in 1852 and ruled as Emperor Napoleon III.Biography
Birth
Napoleon ll was born on 20 March 1811, at the Tuileries Palace, the son of Emperor Napoleon I and Empress Marie Louise. On the same day he underwent ondoiement (a traditional French ceremony which is a simple baptism unaccompanied by the usual additional ceremonies) by Joseph Fesch with his full name of Napoleon François Charles Joseph.
The baptism, inspired by the baptismal ceremony of Louis, Grand Dauphin of France, was held on 9 June 1811 in Notre Dame de Paris. Karl Philipp, Prince of Schwarzenberg, Austrian ambassador to France, wrote of the baptism:Succession rights
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 on 24 January 1814. On 4 April 1814, he abdicated in favour of his three-year-old son after the Six Days' Campaign and the Battle of Paris. The child became Emperor of the French under the regnal name of Napoleon II. However, on 6 April 1814, Napoleon I fully abdicated and renounced not only his own rights to the French throne, but also those of his descendants. The Treaty of Fontainebleau in 1814 gave the child the right to use the title of Prince of Parma, of Piacenza, and of Guastalla, and his mother was styled the Duchess of Parma, of Piacenza, and of Guastalla.
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