When did the Polish-Lithuanian Commonwealth exist?

The Polish-Lithuanian Commonwealth existed 1569–1795. On this map it is drawn 1572–1793.

How large was the Polish-Lithuanian Commonwealth?

At its greatest extent drawn on this map, the Polish-Lithuanian Commonwealth covered about 944,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.

Europe · Reformation to revolution

Polish-Lithuanian Commonwealth

1569–1795

Rzeczpospolita Obojga Narodów ("Commonwealth of Both Nations"); Latin Res Publica. Created by the Union of Lublin (1 July 1569), which merged the Kingdom of Poland and the Grand Duchy of Lithuania into a single elective monarchy with a common Sejm (parliament), while Lithuania kept its own army, treasury, and laws.

See it on the map → Wikipedia ↗

Existed: 1569–1795
Shown on the map: 1572–1793
Peak area: 944k km²
Region: Europe

Names and founding

Government — the Golden Liberty

The Commonwealth was a "noble republic" (szlachta democracy). After the extinction of the Jagiellons (1572), the monarchy became fully elective (first viritim election 1573, choosing Henry of Valois). Each king had to swear the Henrician Articles and pacta conventa, subordinating the crown to the nobility. The Sejm consisted of the king, Senate, and Chamber of Deputies. The bicameral system rested on regional sejmiks.

The liberum veto

From 1652 the principle developed that any single deputy could nullify all legislation of a Sejm session ("free veto"), premised on noble equality and unanimity. Traditionally blamed for paralysing the state, especially in the 18th century when foreign powers bribed deputies. Historiographical note: the "Polish anarchy" narrative was substantially amplified by partition-era propaganda to justify the partitions; modern scholarship stresses that the veto was also a principled confederative-consensus institution and that reform movements (culminating in the Constitution of 3 May 1791) show the system was not simply doomed. Confederated sejms could bypass the veto by majority vote.

Religion

The Warsaw Confederation (28 January 1573) guaranteed religious liberty to non-Catholic nobles and (in practice) royal-city burghers — one of Europe's earliest broad toleration acts, promising that those "who differ with regard to religion will keep the peace with one another, and will not for a different faith or a change of churches shed blood." Historians debate whether it protected only the nobility or also burghers and peasants. The Union of Brest (1596) created the Greek (Uniate) Catholic Church, uniting many Orthodox of the Commonwealth with Rome while keeping the Byzantine rite — but it split Ruthenian society and helped delegalise the Orthodox Church, contributing to later Cossack grievances.

Major events

The reign of Sigismund III Vasa (1587–1632) saw wars with Sweden, Russia (the "Time of Troubles" intervention, Polish garrison in Moscow 1610–1612), and the Ottomans. "The Deluge" (1655–1660) — the Swedish and Russian invasions — devastated the country; the defence of Jasna Góra (1655) became a national-Catholic symbol. Jan III Sobieski's relief of Vienna (12 September 1683) was the Commonwealth's last great military triumph. The Great Northern War (1700–1721) reduced Poland to a Russian client. The Constitution of 3 May 1791 — Europe's first codified national constitution — abolished the liberum veto and elective monarchy, but provoked Russian invasion.

Partitions

The First (1772: Russia, Prussia, Austria), Second (1793: Russia, Prussia), and Third (1795: Russia, Prussia, Austria) Partitions erased the Commonwealth from the map. Its last king, Stanisław August Poniatowski, abdicated in 1795. Successor: the partitioning empires (later the Duchy of Warsaw, 1807).

Common questions

What was the Polish-Lithuanian Commonwealth?: Rzeczpospolita Obojga Narodów ("Commonwealth of Both Nations"); Latin Res Publica. Created by the Union of Lublin (1 July 1569), which merged the Kingdom of Poland and the Grand Duchy of Lithuania into a single elective monarchy with a common Sejm (parliament), while Lithuania kept its own army, treasury, and laws.
When did the Polish-Lithuanian Commonwealth exist?: The Polish-Lithuanian Commonwealth existed 1569–1795. On this map it is drawn 1572–1793.
How large was the Polish-Lithuanian Commonwealth?: At its greatest extent drawn on this map, the Polish-Lithuanian Commonwealth covered about 944,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.
How was the Polish-Lithuanian Commonwealth governed?: The Commonwealth was a "noble republic" (szlachta democracy). After the extinction of the Jagiellons (1572), the monarchy became fully elective (first viritim election 1573, choosing Henry of Valois).
What did the economy and culture of the Polish-Lithuanian Commonwealth rest on?: The Warsaw Confederation (28 January 1573) guaranteed religious liberty to non-Catholic nobles and (in practice) royal-city burghers — one of Europe's earliest broad toleration acts, promising that those "who differ with regard to religion will keep the peace with one another, and will not for a different faith or a change of churches shed blood." Historians debate whether it protected only the nobility or also burghers and peasants.

Sources

This compendium cites its sources once for the whole document rather than per territory. Its bibliography names the English Wikipedia articles for each territory as the primary basis, with Encyclopædia Britannica, EBSCO Research Starters, the New World Encyclopedia, UNESCO, and academic works including Henry Kamen's *Spain, 1469–1714* and Shaul Stampfer's study of Khmelnytsky-era Jewish casualties. The article this entry is anchored on:

Wikipedia — Polish–Lithuanian Commonwealth en.wikipedia.org/wiki/Polish%E2%80%93Lithuanian_Commonwealth

This entry was last updated 27 September 2026.

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

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