Marie married Aymer de Valence, 10th Earl of Pembroke on 3 Jul 1321 in Paris, France. Aymer (son of William de Valence, Earl of Pembroke and Joan de Munchensy, Countess of Pembroke) was born about 1270; died on 23 Jun 1324 in France; was buried on 1 Aug 1324 in Westminster Abbey, London, England. [Group Sheet] [Family Chart]