Under the Legislative Assembly, which was in power before the proclamation of the First Republic, France was engaged in war with Prussia and Austria. In July 1792, the Duke of Brunswick, commanding general of the Austro–Prussian Army, issued his Brunswick Manifesto, in which he threatened the destruction of Paris should any harm come to the King Louis XVI of France. The foreign threat exacerbated France's political turmoil amid the French Revolution and deepened the passion and sense of urgency among the various factions. In the violence of 10 August 1792, citizens stormed the Tuileries Palace, killing six hundred of the King's Swiss guards and insisting on the removal of the king. A renewed fear of anti-revolutionary action prompted further violence, and in the first week of September 1792, mobs of Parisians broke into the city's prisons, killing over half of the prisoners. This included nobles, clergymen, and political prisoners, but also numerous common criminals, such as prostitutes and petty thieves, many murdered in their cells—raped, stabbed, and slashed to death. This became known as the September Massacres.
National Convention
As a result of the spike in public violence and the political instability of the constitutional monarchy, a party of six members of France's Legislative Assembly was assigned the task of overseeing elections. The resulting Convention was founded with the dual purpose of abolishing the monarchy and drafting a new constitution. The Convention's first act was to establish the French First Republic and officially strip the king of all political powers. Louis XVI, by then a private citizen bearing his family name of Capet, was subsequently put on trial for crimes of high treason starting in December 1792. On 16 January 1793 he was convicted, and on 21 January, he was executed by guillotine. Throughout the winter of 1792 and spring of 1793, Paris was plagued by food riots and mass hunger. The new Convention did little to remedy the problem until late spring of 1793, occupied instead with matters of war. Finally, on 6 April 1793, the Convention created the Committee of Public Safety, and was given a monumental task: "To deal with the radical movements of the Enragés, food shortages and riots, the revolt in the Vendée and in Brittany, recent defeats of its armies, and the desertion of its commanding general." Most notably, the Committee of Public Safety instated a policy of terror, and the guillotine began to fall on perceived enemies of the republic at an ever-increasing rate, beginning the period known today as the Reign of Terror. Despite growing discontent with the National Convention as a ruling body, in June the Convention drafted the Constitution of 1793, which was ratified by popular vote in early August. However, the Committee of Public Safety was seen as an "emergency" government, and the rights guaranteed by the 1789 Declaration of the Rights of Man and of the Citizen and the new constitution were suspended under its control.
Directory
After the arrest and execution of Robespierre on July 28, 1794, the Jacobin club was closed, and the surviving Girondins were reinstated. A year later, the National Convention adopted the Constitution of the Year III. They reestablished freedom of worship, began releasing large numbers of prisoners, and most importantly, initiated elections for a new legislative body. On 3 November 1795, the Directory was established. Under this system, France was led by a bicameral Parliament, consisting of an upper chamber called the Council of Elders and a lower chamber called the Council of Five Hundred, and a collective Executive of five members called the Directory. Due to internal instability, caused by hyperinflation of the paper monies called Assignats, and French military disasters in 1798 and 1799, the Directory lasted only four years, until overthrown in 1799.
The constitution of the republic did not provide for a formal head of state or a head of government. It could be discussed whether the head of state would have been the president of the National Assembly under international law. However, this changed every two weeks and was therefore not formative. The following list is based on the actual positions of power within the executive: ;Political factions:
