Polish–Lithuanian Commonwealth

Lore & Background

The Union of Lublin established the Commonwealth as a single entity on 1 July 1569. The two nations had previously been in a personal union since the Krewo Agreement of 1385. The Commonwealth's parliamentary system and elective monarchy, called the Golden Liberty, were an early example of constitutional monarchy. The General Sejm held legislative power; its lower house was elected by szlachta nobles. The Henrician Articles bound the king and circumscribed royal authority. The Warsaw Confederation Act of 1573 guaranteed religious tolerance, though the practical degree varied. Poland acted as the dominant partner. After a long period of prosperity, the Commonwealth entered a period of decline and was partitioned among Austria, Prussia, and Russia during the late 18th century. Shortly before its demise, it enacted the 3 May Constitution, the first modern codified constitution in European history.

Reader's Guide

The official name was the Kingdom of Poland and the Grand Duchy of Lithuania. The Latin term was used in international treaties. The name 'Commonwealth of Two Nations' came into force during the reign of Stephen Báthory (since 1582) and was officially used until 1795. The Third Statute of Lithuania (1588) stated the Commonwealth is a federation of two countries with equal rights. It was also known as the 'Most Serene Commonwealth of Poland'. Western Europeans often simplified the name to 'Poland'. The terms 'Commonwealth of Poland' and 'Commonwealth of Two Nations' were used in the Reciprocal Guarantee of Two Nations (1791). Other informal names include 'Republic of Nobles' and 'First Polish Republic'. In Lithuania, it is referred to as 'Republic of Both Nations'.

Did You Know?

• At its peak in the early 17th century, the Commonwealth spanned approximately 1,000,000 sqkm and supported a multi-ethnic population of around 12 million as of 1618.
• The official languages of the Commonwealth were Polish and Latin, with Catholicism as the state religion.
• The Commonwealth ended in 1795 with the Third Partition.

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.