Tag this record Born / Died Birth Date: 0-00-00Death Date: 1436-00-00 Parents Marriages/Other Unions Mowbray, Margaret de ( - )Type: marriageUnion began: n.d.Union ended: n.d. Offspring From Mowbray, Margaret de ( - )Male offspring: Howard, John (1430 - 1485) From Mowbray, Margaret de ( - )Female offspring: Howard, Katherine ( - 1478) Titles Details of Offices Bibliographic Sources View a list of abbreviations. The Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom. 1887–98 (8 vols); 1910–59 (13 vols). 6 vols. Gloucester: Alan Sutton, 1982 Oxford Dictionary of National Biography.