Polish–Lithuanian Commonwealth

Lore & Background

The Commonwealth was established by the Union of Lublin on July 1, 1569, which created a real union between the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania. This followed a long series of earlier unions: the 1385 Union of Krewo, a personal union that brought Grand Duke Jogaila to the Polish throne after his marriage to Jadwiga in February 1386; the 1401 Union of Vilnius and Radom, which strengthened the union; the 1413 Union of Horodło, which required Polish and Lithuanian noblemen to organize congresses and granted szlachta rights to Lithuanian nobility; the 1432 Union of Grodno, a declarative attempt to renew a closer union; the 1499 Union of Kraków and Vilnius, which made the personal union a dynastic union and recognized Lithuanian sovereignty; and the 1501 Union of Mielnik, a renewal of the personal union. The Commonwealth ended in 1795 with the Third Partition.

Reader's Guide

The Polish–Lithuanian Commonwealth is significant for its political structure as a semi-federal, semi-confederal Republic of the Two Nations. On May 3, 1791, the Polish Constitution of May 3 abolished the elective monarchy and turned it into a hereditary monarchy, establishing a common state called the Rzeczpospolita Polska. The Reciprocal Guarantee of Two Nations modified these changes by stressing the continuity of binational status. However, the changes were reversed completely in 1792 under pressure from the Russian Empire. The Commonwealth then faced two Partitions carried out by Berlin and Saint Petersburg in 1793 and 1795, leading to its final collapse. The state's official name was the Republic of the Two Nations.

Did You Know?

• The Union of Lublin on July 1, 1569 created a semi-federal, semi-confederal Republic of the Two Nations.
• The Polish Constitution of May 3, 1791 abolished the elective monarchy and turned it into a hereditary monarchy.
• The Reciprocal Guarantee of Two Nations modified the May 3 Constitution by stressing the continuity of binational status.
• The changes of the May 3 Constitution were reversed completely in 1792 under pressure from the Russian Empire.
• The Commonwealth ended in 1795 with the Third Partition, carried out by Berlin and Saint Petersburg.

The Long Road to Union (1385–1569)

The bond between the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania was created by a series of acts and alliances from 1385. It opened with the 1385 Union of Krewo, a personal union that brought Grand Duke Jogaila to the Polish throne after his marriage to Jadwiga of Poland in February 1386. The 1401 Union of Vilnius and Radom strengthened the union. The 1413 Union of Horodło required Polish and Lithuanian noblemen to organize congresses to resolve issues of common interest and granted many szlachta rights to Lithuanian nobility. The 1432 Union of Grodno was a declarative attempt to renew a closer union. The 1499 Union of Kraków and Vilnius turned the personal union into a dynastic union, recognized the sovereignty of Lithuania, and described relations between the two states. The 1501 Union of Mielnik renewed the personal union. Each act built on the last, leading to the real union of 1569.

The Union of Lublin – Birth of a Republic

On July 1, 1569, the Union of Lublin created a real union that resulted in the creation of the semi-federal, semi-confederal Republic of the Two Nations, or the Polish–Lithuanian Commonwealth. Unlike the personal and dynastic unions that had preceded it, this was a genuine real union. The Commonwealth endured until 1795, when it ended with the Third Partition. The union represented the culmination of a process that had evolved through successive acts of alliance from 1385 into a genuinely shared political structure.

The May 3, 1791 Constitution and the Fight for Reform

On May 3, 1791, the Polish Constitution of May 3 abolished the elective monarchy and turned it into a hereditary monarchy, establishing a common state called the Rzeczpospolita Polska. The Reciprocal Guarantee of Two Nations modified the changes by stressing the continuity of binational status of the state. However, the changes were reversed completely in 1792 under pressure from the Russian Empire. The constitution represented a dramatic attempt to reform the Commonwealth's political architecture, but it proved tragically short-lived due to foreign intervention.

The Partitions and the Final Collapse

The Commonwealth's existence came to an end through the deliberate actions of neighboring powers. Following the complete reversal of the 1791 constitutional reforms under Russian pressure in 1792, the state faced two Partitions carried out by Berlin and Saint Petersburg: in 1793 and 1795. The Third Partition in 1795 led to the final collapse of the Commonwealth, closing the relationship that had begun with the Union of Krewo in 1385.