Klemens von Metternich
Klemens Wenzel Nepomuk Lothar, Prince von Metternich-Winneburg zu Beilstein, KOGF (; 15 May 1773 – 11 June 1859) was an Austrian diplomat who was at the center of European affairs for four decades as the Austrian Empire's foreign minister from 1809 and Chancellor from 1821 until the liberal Revolutions of 1848 forced his resignation.
Klemens von Klemperer
Klemens von Klemperer had a privileged childhood. He was born in Berlin, one of four children of Herbert and Frieda (née Kuffner) von Klemperer. His father was the president of Berliner Maschinenbau-AG (BMAG), a company that supplied locomotives as well as submarines and torpedoes to the military establishment. He was a grandson of Gustav Klemperer von Klemenau, a prominent banker who rose to become the chairman of the Dresdner Bank, and great nephew of Moriz von Kuffner, Viennese brewer and pioneering alpinist. The family had had a secular Jewish background until his grandfather converted to Protestantism.