Curt Hofemann, curt_hofeman@yahoo.com, wrote in a post-em:
I've never seen amarriage to a (?) de Centerville. Possibly because you list no source, this is speculative or maybe from a less than reliable source like Ancestry.com or familysearch.org? If so, no need to respond.
Few Norman families of the elventh century were more powerful than those of Tosny and Beaumont, but the same period also witnessed the rise of many lesser houses, and of these the first family of Vernon may be taken as an example. When, some time between 1032 and 1035Duke Robert I [of Normandy] gave land to Saint-Wandrille at Sierville, some ten miles north of Rouen, he did so with the consent of a certain 'Hugh of Vernon,' and other documents show that the family of Hugh had already become possessed of other estates in this district, for in 1053 William of Vernon, together with his father Hugh, who had by now become a monk, gave to Holy Trinity, Rouen,land at Martainville within five miles of the city. It is possible that the full lordship of Vernon passed to this family sometime between these dates. Early in the reign of Duke William he had given Vernon to his cousin Guy of Burgundy, and Guy's disgrace and forfeiture after 1047 may well have provided the opportunity for the rise of the new family. [Ref: "William The Conqueror, The Norman Impact Upon England", by David C. Douglas, 1964, University of California Press,Berkey & LA, CA p87]
Regards,
Curt