Who married Adolph I, Duke of Cleves?

Adolph I of Cleves (German: Adolf I) (2 August 1373 – 23 September 1448) was the second Count of Cleves and the fourth Count of Mark.

Mary of Burgundy, Duchess of Cleves (1393 – 30 October 1466) was the second child of John the Fearless and Margaret of Bavaria, and an elder sister of Philip the Good.

Born in Dijon, she became the second wife of Adolph, Count of Mark in May 1406. He was made the 1st Duke of Cleves in 1417. They were the grandparents of King Louis XII of France and the great-grandparents of John III, Duke of Cleves, father of Anne of Cleves, who was fourth Queen consort of Henry VIII of England. By their daughter, Catherine, they were ancestors of Mary, Queen of Scots.

The Duke and Duchess of Cleves lived at Wijnendale Castle in West Flanders. She died in Cleves in present-day Monterberg, Kalkar.