Margaret III, Countess of Flanders (d. 1405)
Margaret III (13 April 1350 – 16/21 March 1405) was the last countess of Flanders of the House of Dampierre, as well as Countess of Artois, Duchess of Burgundy, and Countess of Auvergne and Boulogne (as Margaret II), by her first marriage.