John De Grey
John was born about 1202 in Thurrock Grey, Essex, England.  He died before March 18th, 1266 in Shirland, Derbyshire, England.

 Emma De Caus
Emma was born about 1210 in Water Eaton, Buckinghamshire, England.

 Reynold De Grey
Reynold was born about 1236 in Shirland, Derbyshire, England.  He died on April 5th, 1308 in Wilton Castle, Wilton, Herefordshire, England.