The House of Grey is an ancient noble English family originating from Creully in Normandy. Its name, initially having been difficult to comprehend in the English language, was variously transliterated as Grey, Grai, Greye, Gray, etc.
In the Middle Ages, the Grey family was first ennobled as Barons Grey of Codnor, of Ruthyn and of Wilton (later being elevated as viscounts, earls, marquesses and dukes).
The Norman Anchetil de Greye was the progenitor, via Sir Henry de Grey, of the Anglo-Norman Grey family who were variously called to parliament, married into royalty and became army generals and bishops, as well as later distinguishing themselves in other professions.
The Anglo-Norman baronage Grey family descends from the following principal lines: