John de Mowbray1365 - 1383 Born Thu, 1 August 1365 Epworth Died Sun, 12 January 1383 Isle of Axholme Buried Whitefriars Details Parents 1st Earl of Nottingham John de Mowbray Lived 17 years, 5 months, 11 days father John Mowbray 1340 - 1368 mother Elizabeth Segrave 1340 - 1375 Siblings Sister Margaret de Mowbray 1361 - 1404 Sister Joan de Mowbray 1363 - 1402 Sister Eleanor de Mowbray 1364 - 1417 Brother Thomas de Mowbray 1366 - 1399