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.
Clemens Krauss
Krauss was born in Vienna to Clementine Krauss, then a 15-year-old dancer in the Vienna Imperial Opera Ballet, later a leading actress and operetta singer, niece of the prominent nineteenth-century operatic soprano Gabrielle Krauss. His natural father, Chevalier Hector Baltazzi (1851-1916), came from a family of wealthy Phanariot bankers resident in Vienna. Baltazzi's older sister Helene was married to Baron Albin Vetsera and was the mother of Baroness Mary Vetsera, who was accordingly Clemens Krauss' first cousin.