Prince Klemens Wenzel von Metternich ( full name German : Klemens Wenzel Nepomuk Lothar , Fürst von Metternich-Winneburg zu Beilstein , anglicised as Clement Wenceslas Lothar von Metternich-Winneburg-Beilstein ; 15 May 1773 - 11 June 1859 ) was a politician and statesman of Rhenish extraction and one of the most important diplomats of his era , serving as the Foreign Minister of the Austrian Empire from 1809 until the liberal revolutions of 1848 forced his resignation .
Klemens Wenzel , Prince von Metternich ( German : Klemens Wenzel Nepomuk Lothar , Fürst von Metternich-Winneburg zu Beilstein ) ( May 15 , 1773 - June 11 , 1859 ) was an Austrian politician .