First French Empire (1804–1815) Music of the Coronation of Napoleon I "Marche du Sacre de Napoleon"

The First French Empire was the empire of Napoleon Bonaparte of France and the dominant power in much of continental Europe at the beginning of the 19th century. Although France had already established an overseas colonial empire beginning in the 17th century, historians refer to Napoleon's regime as the First Empire because he was the first ruler of France since the days of the Franks to take an imperial title.

On 18 May 1804, Napoleon was granted the title Emperor of the French  by the French Sénat and was crowned on 2 December 1804, signifying the end of the French Consulate and of the French First Republic. The French Empire earned a few notable victories in the War of the Third Coalition against Austria, Prussia, Russia, Portugal, and allied nations, notably at the Battle of Austerlitz in 1805. Additionally, during the War of the Fourth Coalition, it won the Battle of Friedland in 1807.

A series of wars, known collectively as the Napoleonic Wars, extended French influence to much of Western Europe and into Poland. At its height in 1812, the French Empire had 130 departments, ruled over 70 million subjects, maintained an extensive military presence in Germany, Italy, Spain, and the Duchy of Warsaw, and counted Prussia and Austria as nominal allies. Early French victories exported many ideological features of the French Revolution throughout Europe: the introduction of the Napoleonic Code throughout the continent increased legal equality, established jury systems and legalised divorce, and seigneurial dues and seigneurial justice were abolished, as were aristocratic privileges in all places except Poland