Marie Antoinette. From Wikipedia about her execution 1793:
She wanted to wear a black dress but was forced to wear a plain white dress, white being the colour worn by widowed queens of France. Her hair was shorn, her hands bound painfully behind her back and she was put on a rope leash. Unlike her husband, who had been taken to his execution in a carriage (carrosse), she had to sit in an open cart (charrette) for the hour it took to convey her from the Conciergerie via the rue Saint-Honoré thoroughfare to reach the guillotine erected in the Place de la Révolution (the present-day Place de la Concorde). She maintained her composure, despite the insults of the jeering crowd.