Klemens Wenzel Nepomuk Lothar, Prince of Metternich-Winneburg zu Beilstein (15 May 1773 – 11 June 1859), known as Klemens von Metternich or Prince Metternich, was a German statesman and diplomat in the service of the Austrian Empire. A conservative, Metternich was at the center of the European balance of power known as the Concert of Europe for three decades as Austrian foreign minister from 1809 and chancellor from 1821 until the liberal Revolutions of 1848 forced his resignation.
Born into the House of Metternich in 1773 as the son of a diplomat, Metternich received a good education at the universities of Strasbourg and Mainz. Metternich rose through key diplomatic posts, including ambassadorial roles in the Kingdom of Saxony, the Kingdom of Prussia, and especially Napoleonic France. One of his first assignments as Foreign Minister was to engineer a détente with France that included the marriage of Napoleon to the Austrian archduchess Marie Louise.