Marie Antoinette died on an island.
Marie Antoinette . 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 . The Place de la Concorde ( [ plas də la kɔ̃kɔʁd ] ) is one of the major public squares in Paris , France .