John de Mowbray Baron Mowbray(29 Nov 1310 - 4 Oct 1361)John de Seagrave Baron Seagrave(1315 - 1 Apr 1353)
Joan Plantagenet(abt 1310 - 7 Jul 1349)Margaret Plantagenet(abt 1322 - 24 Mar 1399)
b. 25 Jun 1340, Epworth, Isle Of Axholme, Lincolnshire, England
d. 9 Oct 1368, Constantinople, Turkey
br.  
occ.  
b. 25 Oct 1338, Abbey, Croxton, Leicestershire, England
d. bef 1368
br.  
occ.  
Children
> Thomas de Mowbray Earl of Nottingham(22 Mar 1367 - 22 Sep 1399)
> Joan de Mowbray(abt 1363 - aft 30 Nov 1402)