The 1764 Russo-Prussian alliance formalized a defensive partnership between Prussia and Russia, enabling joint intervention in the Polish–Lithuanian Commonwealth.
Key Facts
- Date signed
- 11 April 1764
- Type of alliance
- Defensive alliance
- Preceded by
- Treaty of Saint Petersburg (1762)
- Primary external target
- Polish–Lithuanian Commonwealth
- Signatories
- Kingdom of Prussia and Russian Empire
Cause → Event → Consequence
The end of the Seven Years' War left Prussia and Russia seeking to consolidate their regional positions. The Treaty of Saint Petersburg of 1762 had ended hostilities between them, creating an opening for closer cooperation. Both states shared strategic interests in stabilizing their borders and extending influence over the weakening Polish–Lithuanian Commonwealth.
On 11 April 1764, the Kingdom of Prussia and the Russian Empire signed a formal defensive alliance. Each party pledged to protect the other's territorial integrity. The treaty built upon the 1762 Treaty of Saint Petersburg and included provisions authorizing both powers to intervene in the internal affairs of the Polish–Lithuanian Commonwealth.
The alliance strengthened Russo-Prussian diplomatic ties and provided a legal framework for coordinated interference in Polish–Lithuanian affairs. This cooperation contributed to the conditions that led to the eventual partitions of Poland, fundamentally redrawing the political map of Eastern Europe in the following decades.
Political Outcome
A defensive alliance was concluded between Prussia and Russia, with mutual territorial guarantees and a joint mandate to intervene in the Polish–Lithuanian Commonwealth.
Prussia and Russia had been adversaries during parts of the Seven Years' War, with limited formal cooperation.
Prussia and Russia were bound by a defensive alliance, jointly positioned to dominate affairs in the Polish–Lithuanian Commonwealth.