John De Grey
John was born about 1150 in Thurrock, Essex, England.  He died after 1198 in Standlake, Witney, Oxfordshire, England.

 Elana De Clare
Elana was born about 1155 in Tunbridge, Kent, England.

 Henry De Grey
Henry was born in 1176 in Thurrock Grey, Essex, England.  He died at the age of 43 in 1219 in Codnor, Derbyshire, England.