1804–1814, 1815, 1852–1870
The House of Bonaparte, or Imperial House of France, descended from a Corsican patrician family of Italian origin. It became a reigning dynasty when Napoleon Bonaparte, a general of the Revolution, had himself proclaimed Emperor of the French on 18 May 1804. His reign, marked by unprecedented territorial expansion across Europe, ended with two abdications (1814 and 1815) following defeats in the Russian campaign and at Waterloo. His nephew Napoleon III restored the dynasty in 1852 with the Second Empire, which in turn collapsed in 1870 after the defeat at Sedan against Prussia, permanently ending Bonaparte rule over France.