Question: When did the Emperor of the French rule, whose last victorious battle was also The Battle of Saint-Dizier?

full_context: Document 1: Battle of Arcis-sur-Aube: The Battle of Arcis-sur-Aube (20–21 March 1814) saw an Imperial French army under Napoleon face a much larger Allied army led by Karl Philipp, Prince of Schwarzenberg during the War of the Sixth Coalition. On the second day of fighting, Emperor Napoleon suddenly realized the long odds against him and hurriedly ordered a retreat. The French were able to disengage and withdraw to the north because of the hesitations of the Austrian Field Marshal Schwarzenberg. This was Napoleon's penultimate battle before his abdication and exile to Elba, the last being the Battle of Saint-Dizier.
Document 2: Siege of Metz (1814): The Siege of Metz (17 January – 10 April 1814) was a siege of the French city of Metz during the War of the Sixth Coalition at the end of the Napoleonic Wars. It pitted French forces under General Pierre François Joseph Durutte against Prussian, Russian and Hessian troops commanded by the Russian General Dimitri Mikhailovich Youzefovitch. The allied force began the siege on 17 January 1814 and eventually lifted it on 10 April the same year, without having taken the city.
Document 3: VI Corps (Grande Armée): The VI Corps of the "Grande Armée" was the name of a French military unit that existed during the Napoleonic Wars. It was formed at the Camp de Boulogne and assigned to Marshal Michel Ney. From 1805 through 1811, the army corps fought under Ney's command in the War of the Third Coalition, the War of the Fourth Coalition, and the Peninsular War. Jean Gabriel Marchand was in charge of the corps for a period when Ney went on leave. In early 1811, Ney was dismissed by Marshal André Masséna for disobedience and the corps was briefly led by Louis Henri Loison until the corps was dissolved in May 1811. The VI Corps was revived in 1812 for the French invasion of Russia and placed under Laurent Gouvion Saint-Cyr. It entirely consisted of Bavarian soldiers at that time. After the disastrous winter retreat the corps was virtually destroyed. In 1813 during the War of the Sixth Coalition it was recreated with reorganized French troops. Marshal Auguste Marmont took command of the corps and managed it until Emperor Napoleon's abdication in 1814. It took part in many battles including Dresden and Leipzig in 1813. During the Hundred Days, Georges Mouton, Count de Lobau commanded the VI Corps at the Battle of Waterloo.
Document 4: Arthur Wellesley, 1st Duke of Wellington: Field Marshal Arthur Wellesley, 1st Duke of Wellington, {'1': ", '2': ", '3': ", '4': "} (1 May 1769 – 14 September 1852) was an Anglo-Irish soldier and statesman who was one of the leading military and political figures of 19th-century Britain. His defeat of Napoleon at the Battle of Waterloo in 1815 put him in the first rank of Britain's military heroes.
Document 5: Napoleonic Wars: The Napoleonic Wars (1803–1815), were a series of major conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European powers formed into various coalitions, financed and usually led by Great Britain. The wars stemmed from the unresolved disputes associated with the French Revolution and its resultant conflict. The wars are often categorised into five conflicts, each termed after the coalition that fought Napoleon; the Third Coalition (1805), the Fourth (1806–7), Fifth (1809), Sixth (1813), and the Seventh and final (1815).
Document 6: Battle of Paris (1814): The Battle of Paris was fought on March 30–31, 1814 between the Sixth Coalition—consisting of Russia, Austria, and Prussia against the French Empire. After a day of fighting in the suburbs of Paris, the French surrendered on March 31, ending the War of the Sixth Coalition and forcing Emperor Napoleon to abdicate and go into exile.
Document 7: I Cavalry Corps (Grande Armée): I Cavalry Corps (Grande Armée) was a French military formation that existed during the Napoleonic Wars. For one month in 1806–1807, Emperor Napoleon split his Reserve Cavalry Corps into the I and II Cavalry Corps. At that time, Marshal Joachim Murat took command of the short-lived I Cavalry Corps before resuming leadership over Napoleon's Reserve Cavalry when the experiment ended. The I Cavalry Corps was not recreated until 1812 for the French invasion of Russia when command was exercised by Étienne Marie Antoine Champion de Nansouty. The formation fought at Borodino and Tarutino. After being destroyed during the retreat from Russia, I Cavalry Corps was reconstituted in 1813 and Marie Victor de Fay, marquis de Latour-Maubourg was appointed to lead it. The corps fought at Lutzen, Bautzen, Dresden, and Leipzig. At Leipzig, Latour-Maubourg was seriously wounded and replaced by Jean-Pierre Doumerc who led the corps for the remainder of the War of the Sixth Coalition which ended with Napoleon's abdication in 1814. After Napoleon returned from exile and retook power in France in 1815, the main French army was baptised Armée du Nord. The army included a I Cavalry Corps led by Pierre Claude Pajol which fought at Ligny and Wavre, while one detached division fought at Waterloo.
Document 8: Napoleon: Napoléon Bonaparte ( ; ] ; 15 August 1769 – 5 May 1821) was a French military and political leader who rose to prominence during the French Revolution and led several successful campaigns during the French Revolutionary Wars. As Napoleon I, he was Emperor of the French from 1804 until 1814, and again briefly in 1815 (during the Hundred Days). Napoleon dominated European and global affairs for more than a decade while leading France against a series of coalitions in the Napoleonic Wars. He won most of these wars and the vast majority of his battles, building a large empire that ruled over continental Europe before its final collapse in 1815. One of the greatest commanders in history, his wars and campaigns are studied at military schools worldwide. Napoleon's political and cultural legacy has endured as one of the most celebrated and controversial leaders in human history.
Document 9: Louis Bonaparte: Louis Napoléon Bonaparte (born Luigi Buonaparte; 2 September 1778 – 25 July 1846) was a younger brother of Napoleon I, Emperor of the French. He was a monarch in his own right from 1806 to 1810, ruling over the Kingdom of Holland (a French client state roughly corresponding to the current Netherlands). In that capacity he was known as Louis I (Dutch: Lodewijk I; ] ).
Document 10: Battle of Toulouse (1814): The Battle of Toulouse (10 April 1814) was one of the final battles of the Napoleonic Wars, four days after Napoleon's surrender of the French Empire to the nations of the Sixth Coalition. Having pushed the demoralised and disintegrating French Imperial armies out of Spain in a difficult campaign the previous autumn, the Allied British-Portuguese and Spanish army under the Marquess of Wellington pursued the war into southern France in the spring of 1814.
Document 11: Nicholas I of Russia: Nicholas I (Russian: Николай I Павлович , "Nikolay I Pavlovich" ; 6 July [O.S. 25 June] 1796 – 2 March [O.S. 18 February] 1855 ) was the Emperor of Russia from 1825 until 1855. He was also the King of Poland and Grand Duke of Finland. He is best known as a political conservative whose reign was marked by geographical expansion, repression of dissent, economic stagnation, poor administrative policies, a corrupt bureaucracy, and frequent wars that culminated in Russia's defeat in the Crimean War of 1853–56. His biographer Nicholas V. Riasanovsky says that Nicholas displayed determination, singleness of purpose, and an iron will, along with a powerful sense of duty and a dedication to very hard work. He saw himself as a soldier—a junior officer totally consumed by spit and polish. A handsome man, he was highly nervous and aggressive. Trained as an engineer, he was a stickler for minute detail. In his public persona, says Riasanovsky, "Nicholas I came to represent autocracy personified: infinitely majestic, determined and powerful, hard as stone, and relentless as fate." His reign had an ideology called "Official Nationality" that was proclaimed officially in 1833. It was a reactionary policy based on orthodoxy in religion, autocracy in government, and Russian nationalism. He was the younger brother of his predecessor, Alexander I. Nicholas inherited his brother's throne despite the failed Decembrist revolt against him and went on to become the most reactionary of all Russian leaders. His aggressive foreign policy involved many expensive wars, having a disastrous effect on the empire's finances.
Document 12: Charles de Gaulle: Charles André Joseph Marie de Gaulle (] ; 22 November 1890 – 9 November 1970) was a French general and statesman. He was the leader of Free France (1940–44) and the head of the Provisional Government of the French Republic (1944–46). In 1958, he founded the Fifth Republic and was elected as the President of France, a position he held until his resignation in 1969. He was the dominant figure of France during the Cold War era and his memory continues to influence French politics.
Document 13: Yakov Kulnev: Yakov Petrovich Kulnev (Russian: Яков Петрович Кульнев) (6 August 1763 – 1 August 1812) was, along with Pyotr Bagration and Aleksey Yermolov, one of the most popular Russian military leaders at the time of the Napoleonic Wars. Suvorov's admirer and participant of 55 battles, he lost his life during Napoleon's invasion of Russia.
Document 14: Battle of Saint-Dizier: The Battle of Saint-Dizier was a battle during the War of the Sixth Coalition, fought on 26 March 1814, and is notable as Napoleon's last victory before he abdicated.
Document 15: Battle of Caldiero (1813): The Battle of Caldiero on 15 November 1813 saw an army of the First French Empire under Eugène de Beauharnais opposed to an Austrian Empire army led by Johann von Hiller. Eugène, who was the Viceroy of the Napoleonic Kingdom of Italy inflicted a defeat on Hiller's troops, driving them from Caldiero. The action took place during the War of the Sixth Coalition, part of the Napoleonic Wars. Caldiero is located 15 km east of Verona on the Autostrada A4.
ground_truth: 1804 until 1814