Margaret of York, also known as Margaret of Burgundy, was Duchess of Burgundy from 1468 to 1477 as the third wife of Charles the Bold, and after his death acted as a protector of the Burgundian State. She was a daughter of Richard of York, 3rd Duke of York, and of Cecily Neville, and the sister of two kings of England, Edward IV and Richard III. Born at Fotheringhay Castle, Northamptonshire, in the Kingdom of England, she died at Mechelen in the Low Countries.