born: 25 June 1340 in Epworth,
Isle of Axholme, Lincolnshire, England
died: 9 October 1368 in Thrace (killed by Saracens while on Crusade)

Father: John de
Mowbray II, 3rd Baron Axholme
Mother: Joan Plantagenet
Spouse: Elizabeth
de Segrave
Children:
1. Eleanor de Mowbray
2. Joan de Mowbray
3. Thomas de Mowbray