Margaret married Thomas BEAUFORT, [DUKE OF EXETER] before 15 Feb 1403/04 in Of, Hornby, Lancashire, England. Thomas (son of John "Of Gaunt" Prince Of ENGLAND, [DUKE OF LANCASTER] and Catherine De ROET, [DUCHESS OF LANCASTER]) was born about Jan 1377 in Chateau De Beaufort, Meurthe-et-Moselle, Anjou, France; died on 31 Dec 1426 in Greenwich Manor, East Greenwich, Kent, England; was buried in Abbey, Bury St. Edmunds, Suffolk, England. [Group Sheet] [Family Chart]