Margaret married John Howard, [DUKE OF NORFOLK on 20 Feb 1466/1467. John (son of Robert Howard, [Sir Knight] and Margaret De Mowbray) was born in 1420 in , TENDRING, Essex, England; died on 22 Aug 1485 in Battle Of, Bosworth Field, Leicestershire, England; was buried on 3 Nov 1485 in , Thetford, Norfolk, England. [Group Sheet] [Family Chart]