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.
Count Johann Nepomuk Wilczek
Born in Vienna the son of well-off noble family, young Hans Wilczek made intensive travels and studied archaeology, art history as well as natural sciences. In 1858 he married Countess Emma Maria Emo Capodilista (1833–1924), a court lady of Archduchess Sophie. He travelled to Russia in 1863, including Crimea and the Caucasus. Then, in 1866, he enlisted in the Austro-Prussian War as a volunteer. Between 1868 and 1870 he travelled across Africa.