He [William de Kerdeston] married, 3rdly, in or before 1342, Margaret or Margery COBOLD. He died s.p.m. legitimate, 14 August 1361. His widow, as "Margaret, who was wife of William dc Kerdeston Knt.," had dower 17 February 1364/5, and was not to marry without the King's licence. She married, as 2nd wife, in or before 1367, Sir Hamon DE FELTON, [3rd Lord Felton] who died s.p.m., 1379 (see FELTON). She died 25 March 1368. [Complete Peerage VII:191-3, XIV:409, (transcribed by Dave Utzinger)]