The Constitution of 3 May 1791: Government Reform in the Polish–Lithuanian Commonwealth

The Constitution of 3 May 1791, formally called the Government Act, attempted to strengthen the Polish–Lithuanian Commonwealth‘s government while preserving political liberty. The Commonwealth joined the Crown of Poland and the Grand Duchy of Lithuania under a shared monarch and parliament. Its nobility had extensive rights to participate in government, but parliamentary obstruction, internal conflict and foreign intervention had made effective administration increasingly difficult.

The constitution introduced majority voting, a stronger accountable executive and hereditary royal succession. It also incorporated new rights for royal townspeople and promised legal protection to peasants. The reform combined institutional change with a society still divided into privileged and dependent groups. Its government operated for little more than a year before Russian invasion and the defeat of the reforming state brought it down.

On this page8 sections

Political crisis and the opportunity for reform

The Commonwealth’s central parliament was the Sejm, while regional noble assemblies called sejmiki selected representatives and discussed public business. The nobility, known as the szlachta, defended their privileges against royal encroachment. Over time, the liberum veto, meaning the free veto, allowed a single deputy’s objection to break a parliamentary session and invalidate its decisions. Magnates and foreign governments could exploit this means of obstruction.

Stanisław August Poniatowski, elected king in 1764, supported reform, but Russia’s influence constrained the state. The Cardinal Laws of 1768 confirmed established noble privileges under a Russian guarantee. The ensuing Bar Confederation fought against Russian interference and the king. Its defeat preceded the First Partition of 1772, when Russia, Prussia and Austria annexed parts of the Commonwealth.

The loss of territory intensified efforts to improve government. The Commission of National Education, established in 1773, reorganized education, and the Permanent Council provided an executive institution between parliamentary sessions. Reform remained contested: the Sejm rejected Andrzej Zamoyski’s proposed legal code in 1780. Efforts to change social rights or strengthen administration could arouse opposition from people who feared for their privileges.

A larger opportunity arose when Russia became occupied with wars against the Ottoman Empire and Sweden. The Sejm convened in 1788 could act with greater freedom, and an alliance with Prussia appeared to offer support. It sat as a confederated parliament, a form that allowed majority decisions instead of the veto. Its long session gave it the names Great Sejm and Four-Year Sejm.

Preparing and adopting the Government Act

From 1790, newly elected deputies joined those already sitting, doubling parliamentary membership. Reform leaders worked on a new constitutional settlement, with major contributions from the king, Ignacy Potocki and Hugo Kołłątaj. They sought an executive capable of carrying out parliamentary decisions and a succession that would reduce the disruption and foreign intervention associated with royal elections.

Urban reform proceeded alongside this work. A procession of representatives from towns in Warsaw in 1789 pressed for recognition of townspeople’s rights. The Free Royal Cities Act, adopted on 18 April 1791, became an integral part of the constitution through its third article. This gave the urban legislation a place within the new system of government.

The Government Act passed on 3 May in the Senate Chamber of the Royal Castle in Warsaw through an accelerated and contested procedure. Reformers brought forward the discussion while many opponents were absent during the Easter recess. Supporters assembled in and around the castle, and the king swore to uphold the act. A further declaration on 5 May confirmed it. Its adoption created a legal framework that still required additional legislation to organize institutions and their detailed work.

The castle combined a royal residence with parliamentary and administrative rooms. Its present interiors were restored and reconstructed after destruction in the Second World War, incorporating surviving historic material. They reflect the setting of Commonwealth government and the later effort to recover a building closely associated with its political history.

Majority voting and the new parliament

The constitution gave legislative authority to a two-chamber Sejm, with the elected Chamber of Deputies taking precedence. The Senate included bishops, provincial dignitaries and ministers, with the king presiding. Deputies represented the nation as a whole, a change from treating them simply as agents bound to their local assembly’s instructions.

For general legislation, such as civil and criminal laws, a bill first passed through the deputies and then went to the Senate. The Senate could accept it or suspend it. If the next Sejm again approved the suspended measure, the Senate had to yield. Other specified decisions, including temporary taxes and treaties, used the combined votes of the chambers. These procedures gave the Senate a role while preventing an indefinite block on general legislation approved by successive sessions.

The act abolished the liberum veto and prohibited confederations and confederated Sejms. Majority voting became the governing rule. The parliament was to be renewed every two years and remain ready to meet when emergencies required it. War, internal disorder, impending famine or the king’s death or serious illness could trigger an extraordinary gathering.

The associated reform of the sejmiki restricted the electoral participation of landless nobles. Reformers wanted to reduce the influence of magnates over dependent clients whose votes could support obstruction. Political participation remained tied to social position and property. The constitution also provided for an extraordinary constitutional Sejm every twenty-five years to consider changes after experience of the system’s operation.

The king, ministers and the Guardians of the Laws

Executive authority belonged to the king with a council called the Guardians of the Laws. It included the primate, the leading Catholic bishop, and five ministers responsible for police, the seal, war, treasury and foreign affairs. The minister of the seal dealt with the authentication and administration of state acts. Secretaries kept records, while the Sejm’s marshal, its presiding officer, attended with a specific duty to secure the calling of parliament when necessary.

The council was to supervise implementation of the laws through administrative commissions. These covered education, police, military affairs and the treasury. Commissioners were chosen by the Sejm. Government therefore required a chain of work: parliament made laws, the king and Guardians directed execution, and commissions and local bodies carried out the relevant business.

Royal decisions required a minister’s countersignature. That second signature connected an act to a minister who could be held responsible for it. If every minister refused to sign, the king had to abandon the decision or face referral to the Sejm. Parliament could demand a minister’s replacement by a two-thirds vote of the combined chambers, or refer an alleged legal violation for trial. The king’s stronger position thus operated alongside identifiable ministerial responsibility.

The executive could not itself legislate, impose taxes, borrow public money or definitively make war, peace and treaties. Those powers remained with parliament. Ministers could conduct provisional diplomatic business, but the system required them to account for it. Effective administration was intended to work within laws and parliamentary control.

Succession and the organization of justice

The constitution replaced repeated elections of individual kings with succession in a designated dynasty. After Stanisław August, the throne was to pass to Frederick Augustus, the elector of Saxony, and then through the stipulated family line. Provisions also addressed succession through his daughter if he had no male heir. The nation retained a right to choose a new dynasty when the existing line ended.

This arrangement aimed to prevent an interregnum, the period between monarchs, from repeatedly disrupting government and inviting outside intervention. A succeeding king still had to swear to the constitution and his agreed obligations. The proposed Saxon succession was never put into effect before the constitutional government collapsed.

Judicial power was separated from legislation and executive government. The act provided for local courts with elected judges and appeals to higher tribunals, allowing litigants to seek review of a decision. It retained distinct jurisdictions for different categories of people and institutions, including courts for free royal towns. A Sejm Court dealt with crimes against the state. A commission was also to prepare a civil and criminal code, extending the program beyond the constitutional framework itself.

Townspeople, peasants and religion

The Free Royal Cities Act secured hereditary urban property and extended protections against arbitrary arrest. It allowed townspeople to acquire landed estates and opened access to offices and military commissions. Property-owning citizens could participate in municipal elections, and cities could appoint representatives who carried their concerns into national institutions. These representatives had defined responsibilities in commissions and a means to bring urban requests before the Sejm.

For peasants, the constitution’s promise of national legal protection had a particular mechanism. Recorded agreements between landowners and villagers concerning labour, payments or concessions were to bind both parties and their successors. A landlord who inherited or purchased an estate was therefore not free to disregard such a settlement at will. The act also offered personal freedom to people arriving from abroad or returning after emigration, allowing them to choose where to settle and contract for work or land.

Existing dependent peasants continued to owe labour service and remained under landowners’ authority. The reform nonetheless assigned the national government a role in protecting agreements that had previously depended heavily on estate relationships.

Roman Catholicism remained the dominant religion. The first article promised protection and freedom to other rites and religions while retaining penalties for leaving Catholicism. Religious rights, like social rights, developed within a framework that continued to privilege particular groups. Noble personal security and property rights were expressly reaffirmed.

The Grand Duchy’s place in the reformed Commonwealth

Stronger common government raised questions about Lithuania’s position in the union. Lithuanian representatives sought guarantees that reform would preserve the standing of their constituent polity.

The Mutual Pledge of the Two Nations, adopted on 20 October 1791, supplied an important settlement. It confirmed the union and protected Lithuania through parity or alternation in common governing institutions. This allowed shared administration to develop while recognizing a distinct Lithuanian political role. The pledge became part of the constitutional settlement.

Implementation, invasion and the end of reform

During 1791 and the following months, the Sejm enacted laws to organize the Guardians, the Sejm Court, police administration and urban government. The constitution’s institutions began working, even though further legal and economic projects remained unfinished.

Opponents formed the Targowica Confederation and sought Russian intervention, presenting the new system as an attack on traditional liberty. Russia invaded in May 1792. Prussia did not provide the protection expected from its alliance, and the Commonwealth fought on both Crown and Lithuanian fronts. The king joined Targowica in July, ending organized resistance and abandoning the constitutional government.

The Grodno Sejm of 1793, held under Russian pressure, accepted the Second Partition and reversed the constitutional settlement. Kościuszko’s uprising in 1794 sought to resist foreign domination, but its defeat was followed by the Third Partition of 1795. The Commonwealth ceased to exist as a sovereign state. The May constitution survived as a record of the institutions and rights reformers had attempted to establish during its final years.