In 1791, the National Assembly was replaced by the Legislative Assembly. France was now a constitutional monarchy. The king remained head of state. Apart from a suspensive veto, however, he had little influence left over politics. The new deputies had no political experience. The most momentous decision of the Legislative Assembly was the declaration of war on Austria in April 1792. The unfavorable course of the war deepened the domestic crisis. Radical forces took the initiative. On 10 August 1792, the people of Paris stormed the Tuileries Palace. The monarchy was thereby effectively over. New elections were called for a National Convention.
September 21, 1792 · First sitting of the National Convention, which replaces the Legislative Assembly.
Quotes
There is in France no authority superior to that of the law. The King reigns only by it, and it is only in the name of the law that he may require obedience. Title III, Chapter II, Section I, Article 3, Constitution of 1791
The French nation declares war on the King of Bohemia and Hungary. Decree of the Legislative Assembly, 20 April 1792
The fatherland is in danger! Proclamation of the Legislative Assembly, 11 July 1792