Robert De Mortimer
Robert was born about 1246 in Richard's Castle, Herefordshire, England.  He died on April 7th, 1287.

 Joyce La Zouche
Joyce was born about 1250 in King's Nympton, Devonshire, England.

 Sir William De Mortimer
Sir William was born about 1269 in King's Nympton, Devonshire, England.

 Hugh De Mortimer
Hugh was born in 1271 in Richard's Castle, Herefordshire, England.  He died at the age of 33 on July 20th, 1304.

 Isabel De Mortimer
Isabel was born about 1275.