Edmund De Mortimer
Edmund was born about 1306 in Thornbury, Herefordshire, England.  He died about 1331.

 Elizabeth De Badlesmere
Elizabeth was born in 1313 in Chilham Castle, Kent, England.  She died at the age of 42 on June 8th, 1355 in Richmond Palace, Surrey.

 Roger De Mortimer
Roger was born on November 11th, 1328 in Thornbury, Herefordshire, England.  He died at the age of 32 in 1360.

 John De Mortimer
John was born about 1330.