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 Louis, Count of Trani
His maternal grandparents were Archduke Charles, Duke of Teschen and Princess Henrietta of Nassau-Weilburg, Duchess of Teschen. The Duke of Teschen was a son of Leopold II, Holy Roman Emperor. The Duchess of Teschen was a great-granddaughter of Anne, Princess Royal and Princess of Orange, herself a daughter of George II of the United Kingdom.