 Sir John Lord Emley Fitzwilliam, son of Sir Knight William Fitzwilliam and Isabel Deincourt.Born 1298 Sprotbrough, Yorkshire, England, died 10 Aug 1349 Emley, Yorkshire, England, 50 or 51 years Married 1342 Yorkshire, England to:  Joan DereresbyBorn 1302 Shelton, Yorkshire, England, died 1342, 39 or 40 years Children: 1. Sir Knight William FitzwilliamBorn 1289 Emley, Yorkshire, England, died 1329 Sprotborough, Yorkshire, England, 39 or 40 years 2. Sir John Fitzwilliam, Earl Of Emley, KgBorn ± 1327 Emley, Yorkshire, England, died ± 1385, approximately 58 years | |||