イエナ・アウエルシュタットの戦い
On 18 May 1804, Napoleon was granted the title Emperor of the French ("", ) by the French (Senate) and was crowned on 2 December 1804, signifying the end of the French Consulate and of the French First Republic. Despite his coronation, the empire continued to be called the "French Republic" until 1809. The French Empire achieved military supremacy in mainland Europe through notable victories in the War of the Third Coalition against Austria, Prussia, Russia, and allied nations, notably at the Battle of Austerlitz in 1805. French dominance was reaffirmed during the War of the Fourth Coalition, at the Battle of Jena–Auerstedt in 1806 and the Battle of Friedland in 1807, before Napoleon's final defeat at the Battle of Waterloo in 1815.