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

 Phillipa De Montague
Phillipa was born about 1342 in Salisbury, Wiltshire, England.  She died in Bisham, Berkshire, England.

 Margery De Mortimer
Margery was born in 1352 in Llangoed, Brecon, Wales.

 Edmund De Mortimer
Edmund was born in Llangoed, Brecon, Wales.  He died on December 27th, 1381 in Dominican Friary, Cork, Ireland.