Conflict between [[Louis XVI of France|King Louis XVI]] of France and the country's new revolutionary [[Legislative Assembly (France)|Legislative Assembly]] increased through the spring and summer of 1792 as Louis vetoed radical measures voted upon by the Assembly. Tensions accelerated dramatically on August 1 when news reached Paris that the commander of the allied Prussian and Austrian armies had issued the [[Brunswick Manifesto]], threatening "unforgettable vengeance" on Paris should harm be done to the French Monarchy. On August 10th, the [[National Guard (France)|National Guard]] of the [[Paris Commune (French Revolution)|Paris Commune]] and ''[[fédéré]]s'' from [[Marseille]] and [[Brittany]] stormed the King's residence in the Tuileries Palace in Paris, which was defended by the [[Swiss Guards]]. Hundreds of Swiss guardsmen and 400 revolutionaries were killed in the battle,<ref>{{cite book |last=Kropotkin |first=Peter |date=1929 |title=The Great French Revolution 1789-1793, Vol. I |location=New York, New York, USA |publisher=Vanguard Press |page=176|quote= [In the Tuileries palace], others of the Swiss, commanded by the officers of the Court and posted on the great staircase of the chief entrance, fired upon the crowd, and in a few minutes four hundred of the assailants lay dead in heaps at the foot of the stairs. [...] soon the Swiss, under the furious assault of the people, were either disarmed or massacred.}}</ref> and Louis and the royal family took shelter with the [[Legislative Assembly (France)|Legislative Assembly]]. The formal end of the monarchy occurred six weeks later on September 21st as one of the first acts of the new [[National Convention]], which established a Republic on the next day.{{sfn|Thompson|1959|p=315}}