King Louis XVI of France is formally arrested by the National Tribunal, and declared an enemy of the people.

Louis XVI was the last king of France before the fall of the monarchy during the French Revolution. The son of Louis, Dauphin of France, and Maria Josepha of Saxony, Louis became the new Dauphin when his father died in 1765. In 1770, he married Marie Antoinette. He became King of France and Navarre on his grandfather's death on 10 May 1774, and reigned until the abolition of the monarchy on 21 September 1792. From 1791 onwards, he used the style of king of the French.

The terms enemy of the people and enemy of the nation are designations for the political opponents and the social-class opponents of the power group within a larger social unit, who, thus identified, can be subjected to political repression.