Margaret married John de Bohun, 5th Earl of Hereford on 19 Feb 1331. John (son of 4th Earl of Hereford Humphrey VIII de Bohun and Elizabeth "of Rhuddlan" Plantagenet) was born on 23 Nov 1306 in St Clements, Oxfordshire, England; died on 20 Jan 1336 in Kirkby-Thore, Westmorland, England; was buried in Stratford Langthorne Abbey, London, Middlesex, England. [Group Sheet] [Family Chart]