The First French Empire, officially the French Republic, then the French Empire after 1809, also known as Napoleonic France, was the empire ruled by Napoleon Bonaparte who established French hegemony over much of continental Europe at the beginning of the 19th century. It lasted from 18 May 1804 to 11 April 1814 and again briefly from 20 March 1815 to 7 July 1815.(French: Empire français; Latin: Imperium Francicum),