John de Grey & Hawise de Grey 
They had a son named Robert.
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Personal Details
John de Grey
John was born in 1150 in Thurrock Grey, Essex, England.1 He died at the age of 48 in 1198 in Standlake, Witney, Oxfordshire, England.1
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=tamer&id=I4912&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=tamer&id=I4912
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I79995&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=tamer&id=I4912
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I79995&style=TABLE