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.
The Minister-President of Austria was the head of government of the Austrian Empire from 1848, when the office was created in the course of the March Revolution.
 Previously, executive power rested with an Austrian State Council, headed by the Emperor himself, from 1821 under the chairmanship of State Chancellor Prince Klemens von Metternich.
 The offices of Minister-President was not refilled from 1852, when Emperor Franz Joseph resumed control of the government affairs, and was replaced by a coordinating Chairman of the Austrian Minister's Conference.
Christoph Wilhelm von Koch (French: "Christophe-Guillaume Koch" ; 9 May 1737 – 25 October 1813, Strasbourg; from 1777 Edler von Koch) was a Protestant diplomat, politician, librarian and writer from Alsace, who also taught constitutional law and history.
 His pupils included Johann Wolfgang von Goethe, Maximilian von Montgelas, Klemens von Metternich and Louis-Guillaume Otto.
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.
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.
Metternich usually refers to Prince Klemens von Metternich (1773–1859), famous Austrian politician and diplomat.
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.
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).
Saud bin Faisal bin Abdulaziz Al Saud (Arabic: سعود بن فيصل بن عبد العزيز آل سعود‎ ‎ ), also known as Saud Al Faisal (Arabic: سعود الفيصل‎ ‎ ‎; 2 January 1940 – 9 July 2015), was a Saudi diplomat and statesman who served as Saudi Arabia's foreign minister from 1975 to 2015.
 A member of the Saudi royal family, he was the longest-serving foreign minister in world history since Klemens von Metternich.
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.

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