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.
Prince Frederick of Württemberg
Frederick was born 21 February 1808 at Schloss Comburg (now part of Schwäbisch Hall), Kingdom of Württemberg, 
the second child and eldest son of Prince Paul of Württemberg and his wife Princess Charlotte of Saxe-Hildburghausen. Through his father, Frederick was a grandson of Frederick I of Württemberg and through his mother, a grandson of Frederick, Duke of Saxe-Altenburg. He was a younger brother of Grand Duchess Elena Pavlovna of Russia and an elder brother of Pauline, Duchess of Nassau and Prince August of Württemberg.