Marie Antoinette was killed on November 1st, 1755.
Marie Antoinette . During the Revolution , after the government had placed the royal family under house arrest in the Tuileries Palace in October 1789 , several events linked to Marie Antoinette , in particular the June 1791 attempted flight to Varennes and her role in the War of the First Coalition , had disastrous effects on French popular opinion . After a two-day trial begun on 14 October 1793 , Marie Antoinette was convicted by the Revolutionary Tribunal of high treason and executed by guillotine on the Place de la Révolution on 16 October 1793 .