Question: Which country did both Klemens von Metternich and Richard von Metternich represent?

full_context: Document 1: Franz Anton von Kolowrat-Liebsteinsky: Count Franz Anton von Kolowrat-Liebsteinsky (] ; Czech: "František Antonín Kolovrat-Libštejnský" ; 31 January 1778 – 4 April 1861) was Bohemian noble and Austrian statesman from the House of Kolowrat. As a moderate liberal politician, he was one of the major opponents of State Chancellor Prince Klemens von Metternich during the "Vormärz" era. In the March Revolution of 1848, Kolowrat became the first constitutional Minister-President of Austria, however, he resigned after one month in office.
Document 2: Congress of Vienna: The Congress of Vienna (German: "Wiener Kongress") was a meeting of ambassadors of European states chaired by Austrian statesman Klemens von Metternich, and held in Vienna from November 1814 to June 1815, though the delegates had arrived and were already negotiating by late September 1814. The objective of the Congress was to provide a long-term peace plan for Europe by settling critical issues arising from the French Revolutionary Wars and the Napoleonic Wars. The goal was not simply to restore old boundaries but to resize the main powers so they could balance each other and remain at peace. The leaders were conservatives with little use for republicanism or revolution, both of which threatened to upset the status quo in Europe. France lost all its recent conquests while Prussia, Austria and Russia made major territorial gains. Prussia added smaller German states in the west, Swedish Pomerania and 60% of the Kingdom of Saxony; Austria gained Venice and much of northern Italy. Russia gained parts of Poland. The new Kingdom of the Netherlands had been created just months before, and included formerly Austrian territory that in 1830 became Belgium.
Document 3: Fürst von Bismarck: The great German statesman and diplomat Otto von Bismarck (1815–1898) received several noble titles during the course of his career. Already born into a noble Junker family, the House of Bismarck, he began life as simply "Mr (German:"Herr") Otto Eduard Leopold von Bismarck".
Document 4: Metternich (disambiguation): Metternich usually refers to Prince Klemens von Metternich (1773–1859), famous Austrian politician and diplomat.
Document 5: Herbert von Bismarck: Nicolaus Heinrich Ferdinand Herbert, Prince von Bismarck (28 December 1849 – 18 September 1904) was a German politician, who served as Foreign Secretary from 1886 to 1890. His political career was closely tied to that of his father, Otto von Bismarck, and he left office a few days after his father's dismissal. He succeeded his father as the 2nd Prince of Bismarck in 1898. He was born in Berlin and died in Friedrichsruh.
Document 6: Rudolf, Crown Prince of Austria: Rudolf, Crown Prince of Austria (Rudolf Franz Karl Joseph; 21 August 1858 – 30 January 1889) was the only son of Emperor Franz Joseph I and heir apparent to the throne of Austria-Hungary from birth. In 1889, he died in a suicide pact with his mistress, Baroness Mary Vetsera, at the Mayerling hunting lodge. The ensuing scandal made international headlines. He was named after the first Habsburg King of Germany, Rudolf I, who assumed the throne in 1273.
Document 7: Klemens von Metternich: Klemens Wenzel Nepomuk Lothar, Prince von Metternich-Winneburg zu Beilstein (15 May 1773 – 11 June 1859) was a German diplomat and statesman and one of the most important of his era, serving as the Austrian Empire's Foreign Minister from 1809 and Chancellor from 1821 until the liberal revolutions of 1848 forced his resignation.
Document 8: Wenzel Anton, Prince of Kaunitz-Rietberg: Wenzel Anton, Prince von Kaunitz-Rietberg (German: "Wenzel Anton Fürst von Kaunitz-Rietberg" , ; 2 February 1711 – 27 June 1794) was an Austrian and Czech diplomat and statesman in the Habsburg Monarchy. A proponent of enlightened absolutism, he held the office of State Chancellor for about four decades, responsible for the foreign policies under the reign of Maria Theresa, Joseph II, and Leopold II. In 1764 he was elevated to the noble rank of a Prince of the Holy Roman Empire ("Reichfürst").
Document 9: House of Metternich: The House of Metternich was a German noble house originating in Rhineland. The most prominent member of the House of Metternich was Klemens von Metternich, who was the dominant figure at the Congress of Vienna (1814–1815).
Document 10: Richard von Metternich: Prince Richard Klemens von Metternich (German: "Richard Klemens, Fürst von Metternich-Winneburg"; 7 January 1829 – 1 March 1895), usually known as Richard (von) Metternich, was an Austrian diplomat and the eldest surviving son of the illustrious diplomat Prince Klemens von Metternich.
Document 11: Hermann von Richthofen: Hermann Freiherr von Richthofen, GCVO (born 20 November 1933 in Breslau) is a German diplomat. He is a great nephew of Manfred von Richthofen, the "Red Baron".
Document 12: Gustav, 7th Prince of Sayn-Wittgenstein-Berleburg: Gustav, 7th Prince of Sayn-Wittgenstein-Berleburg (Gustav Frederik Philip Richard; born 12 January 1969 in Frankfurt-am-Main, Germany), is the eldest child and only son of Princess Benedikte of Denmark and Richard, 6th Prince of Sayn-Wittgenstein-Berleburg.
Document 13: Prince Richard, Duke of Gloucester: Prince Richard, Duke of Gloucester, {'1': ", '2': ", '3': ", '4': "} (Richard Alexander Walter George; born 26 August 1944) is the youngest grandchild of King George V and Queen Mary. He practised as an architect until the death of his elder brother placed him in direct line to inherit his father's dukedom of Gloucester, which he inherited, as the second duke, in 1974. He is currently 24th in the line of succession to the British throne. He is also the senior male line descendant of three British monarchs: Victoria, Edward VII and George V .
Document 14: Albert, 12th Prince of Thurn and Taxis: Albert Maria Lamoral Miguel Johannes Gabriel, 12th Prince of Thurn and Taxis (Albert Fürst von Thurn und Taxis; born 24 June 1983), is a German aristocrat, businessman, and race car driver. He has been listed as the world's youngest billionaire many times since his father's death in 1990, first appearing on the list when he was age eight.
Document 15: Historical assessment of Klemens von Metternich: Prince Klemens von Metternich was a German-born Austrian politician and statesman and one of the most important diplomats of his era, serving as the Foreign Minister of the Holy Roman Empire and its successor state, the Austrian Empire, from 1809 until the liberal revolutions of 1848 forced his resignation. His influence on historical developments on Europe has been the subject a numerous assessments. Some of the subjects that has been assessed are Metternich's over-all diplomatic skills and actual degree of influence, his role in shaping the balance of power in Europe, his relation and influence on nationalist and liberal movements.
ground_truth: Austrian