Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
NEWBURGH
As described in historical dictionaries
Patronymica Britannica (1860)
NEWBURGH. According to Dugdale, the founder of this fomily was Henry de Ncwburgh, so called from the castle of that name in Normandy, a younger son of Roger de Bellonionte, Earl of Mellent. He came in with the Conqueror, and was created Earl of AVarwick. Neubourg, the place probably alluded to by Dugdale, is near Louviers.