Given the familial connections through marriage and land holdings, it is also possible that Hamon de Massey and Marguerite de Sacy were connected to other noble families in Normandy who played key roles in the Conquest of England. Some of these include:
The Conteville family (Muriel de Conteville, mother of Hamon de Massey, was a member of this family and had ties to William the Conqueror).
The de Clare family, one of the largest and most powerful Norman families in both Normandy and England after the Conquest, might have had ties to the de Masseys through marriage or land distribution.
