Edmund De Mortimer
Edmund De was born in 1252 in Wigmore, Herefordshire, England.  He died at the age of 52 on July 17th, 1304 in Wigmore, Herefordshire, England.  He was buried in Wigmore Abbey, Hereford And Worcester, England.

 Margaret De Fiennes
Margaret De was born in 1266 in Normandy, France.  She died at the age of 72 in 1338.

 Roger De Mortimer
Roger De was born in 1287 in Hereford, England.  He died at the age of 43 in 1330.