Margaret of Burgundy was Duchess of Bavaria as the wife of Duke William II. She acted as regent in Hainaut in the absence of her spouse between 1404 and 1417. Wikipedia
Born: October 16, 1374, Montbard, France
Died: March 8, 1441 (age 66 years), Le Quesnoy, France
Children: Jacqueline, Countess of Hainaut
Great-grandparents: Margaret I, Countess of Burgundy, John III, Duke of Brabant, Philip VI of France, and more
Grandchild: child Plantagenet
Parents: Philip the Bold and Margaret III, Countess of Flanders
Spouse: William II, Duke of Bavaria (m. 1385)