John De Segrave
John De was born in 1314.  He died at the age of 39 on April 1st, 1353.

 Margaret Plantagenet
Margaret was born in 1322 in , , Norfolk, England.  She died at the age of 76 on March 24th, 1398 in Carthusian Church, Grey Friars, London, England.

 Elizabeth De Segrave
Elizabeth De was born on October 25th, 1338.  She died at the age of 30 in 1368.