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

 Elana de Clare
Elana de was born about 1154 in Tunbridge Castle, Kent, England.

 Agnes Grey
Agnes was born about 1175 in Standlake, Witney, Oxfordshire, England.

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