Hamon de Sacy (the progenitor of the family in Normandy) may have connections to early Norman aristocracy, particularly the Viking settlers who established Normandy in the 9th and 10th centuries. The Sacy family name is tied to a place-name, Sacy in the Avranches area of Normandy, which suggests the family could have been early settlers in that region.
The Sacy family may trace its origins back to the Viking invaders who took over parts of northern France in the early medieval period.
The de Sacy family appears to have had a distinguished relationship with the dukes of Normandy as well as William the Conqueror's court.
