John De Mowbray
John was born in 1328 in Epworth, Isle Axholme, Lincolnshire, England.  He died at the age of 40 in 1368 in Constantinople, , , Turkey.

 Elizabeth De Segrave UNKNOWN
Elizabeth De Segrave was born in 1338 in , , , England.  She died at the age of 30 in 1368 in , , , England.

 Joan De Seint Lou
Joan was born in 1351 in Westbury Brook, , Wiltshire, England.  She died at the age of 30 on February 10th, 1381 in Broke, , Wiltshire, England.