The Treaty of Vienna (1864) was a peace treaty signed on 30 October 1864 in Vienna between the Austrian Empire, the Kingdom of Prussia, and the Kingdom of Denmark. The treaty ended the Second War of Schleswig. Its terms provided that Prussia would administer Schleswig and Austria would similarly govern Holstein. Disputes over the administration of the two provinces would lead to the 1866 Austro-Prussian War.

The Treaty of Vienna
The Treaty of Vienna, signed on June 9, 1815, was a diplomatic agreement that aimed to redraw the map of Europe after the Napoleonic Wars. Here are the key points of the treaty:

1. Restoration of Monarchies
- The main goal of the treaty was to restore the monarchies that had been overthrown during the Napoleonic Wars.
- This included the restoration of the Bourbon monarchy in France and the Habsburg monarchy in Austria.

2. Balance of Power
- The treaty sought to establish a balance of power in Europe to prevent any one country from becoming too dominant.
- This was achieved through the creation of a system of alliances and territories that would ensure stability in the region.

3. Redrawing of Borders
- The treaty resulted in the redrawing of borders throughout Europe, with some countries gaining territory and others losing it.
- Poland, for example, was divided between Russia, Prussia, and Austria, while Belgium was united with the Netherlands.

4. Compensation for Losses
- The treaty also provided for compensation for countries that had suffered losses during the Napoleonic Wars.
- This included financial reparations and the transfer of territories to the victors.
Overall, the Treaty of Vienna was a significant diplomatic agreement that reshaped Europe in the aftermath of the Napoleonic Wars, laying the foundation for a period of relative peace and stability on the continent.