**The Congress of Vienna and the Treaty of Vienna of 1815**

The Treaty of Vienna of 1815 was the result of the Congress of Vienna, a diplomatic meeting held in Vienna, Austria, from September 1814 to June 1815. The Congress aimed to redraw the map of Europe after the Napoleonic Wars and establish a new balance of power among the major European powers. The treaty was signed on June 9, 1815, and had a profound impact on the political landscape of Europe for many years to come.

**Key Figures Associated with the Treaty of Vienna**
Several key figures played significant roles in the negotiations and decisions leading to the Treaty of Vienna of 1815. These individuals included:

1. **Klemens von Metternich (Austrian Empire):** As the host of the Congress and the Austrian Empire's chief negotiator, Metternich played a central role in shaping the treaty. He aimed to restore the pre-Napoleonic order and prevent future revolutions by promoting a conservative agenda.

2. **Charles-Maurice de Talleyrand (France):** Talleyrand represented France and skillfully negotiated on behalf of his country's interests. Despite France's defeat in the Napoleonic Wars, Talleyrand was able to secure favorable terms for France, ensuring its position as a major European power.

3. **Tsar Alexander I (Russia):** Alexander I of Russia was a prominent figure at the Congress and had a significant influence on the treaty's outcome. He advocated for a balance of power in Europe and sought to expand Russian territories. His proposals for a "Holy Alliance" were included in the treaty, emphasizing cooperation between the major European powers.

4. **Viscount Castlereagh (United Kingdom):** As the British representative, Castlereagh played a crucial role in shaping the treaty. He aimed to prevent the restoration of French dominance and ensure the balance of power in Europe. Castlereagh's diplomatic skills helped maintain harmony among the competing interests of the major powers.

5. **Prince Wilhelm von Humboldt (Prussia):** Humboldt represented Prussia and participated actively in the Congress. He advocated for the unification of German states and the expansion of Prussian influence. His proposals were reflected in the treaty's provisions concerning the German Confederation.

**Conclusion**
The Treaty of Vienna of 1815 was a significant international agreement that aimed to establish a stable balance of power in Europe after the Napoleonic Wars. The key figures associated with the treaty, including Metternich, Talleyrand, Alexander I, Castlereagh, and Humboldt, played instrumental roles in shaping the negotiations and ensuring their respective countries' interests were represented. Through their diplomatic efforts, these individuals contributed to a new era of peace and stability in Europe, albeit one that would be challenged in the years to come.

Austrian Chancellor Duke Metternich.