Who married Enguerrand VII, Lord of Coucy?

Enguerrand VII de Coucy, (1340 – 18 February 1397), also known as Ingelram de Coucy and Ingelram de Couci, was a medieval French nobleman and the last Lord of Coucy. He became a son-in-law of King Edward III of England following his marriage to the king's daughter, Isabella of England, and the couple was subsequently granted several English estates, among them the title Earl of Bedford. Coucy fought in the Battle of Nicopolis in 1396 as part of a failed crusade against the Ottoman Empire, but was taken prisoner and contracted the bubonic plague. He died in captivity the following year at Bursa.

Coucy had no surviving legitimate sons. Fierce legal disputes were fought over the succession of his lordship of Coucy, which, as a result, passed to the crown lands of France.

Isabella of England (16 June 1332 – 1379/1382) was the eldest daughter of King Edward III of England and Philippa of Hainault, and the wife of Enguerrand de Coucy, Earl of Bedford, by whom she had two daughters. She was made a Lady of the Garter in 1376.