Margaret of Flanders
Margaret of Flanders, or Margaret of Dampierre (c. 1251 – 3 July 1285), was duchess consort of Brabant, the daughter of Guy of Dampierre, Count of Flanders, and his first wife Matilda of Béthune. In 1273 she married John I, Duke of Brabant.
Her children included John II, born in 1275, who succeeded his father as duke of Brabant, and Margaret, born in 1276, who married Henry VII, Holy Roman Emperor, in 1292. Margaret herself died on 3 July 1285.