GREY. jMost genealogists derive this ancient and noble family from Fulbert, chamljerlain to Eobert, duke of Normandy, who held by his gift the castle of Croy, in Picardy, from Avhence the name is assumed to have been borro\ved. There is liowtAer no evidence for this ; for the pedigree is only traced to Henry de Grey, to whom Eichard Ceeur-de-Lion gave the manor of Thurrock, co. Essex, which manor was subsequently known as Grey's Tliurrock. From the "Recherchcs sur le Domesd." of D'Anisy, it appears proliable that the family came from Grai or Gray, a village near Caen. However this may be, the first settler of the name in England, was clearly Anchitillus Grai, a Domesd. tenant in Oxfordshire.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.