<P> During the French Revolution, the proclamation of the abolition of the monarchy (French: Proclamation de l'abolition de la royauté) was a proclamation by the National Convention of France announcing that it had abolished the French monarchy on 21 September 1792 . </P> <P> The Convention's députés were instructed to put an end to the crisis that had broken out since the prevented flight to Varennes of Louis XVI (June 1791) and the bloody capture of the Tuileries (10 August 1792). Their middle - class origin and their political activity meant that most of them bore no sympathy for the monarchy, and the victory at the battle of Valmy on 20 September (the revolution's first military success) occurred on the same day as their meeting, thus confirming their convictions . </P>

Who abolished monarchy in france and declared it a republic