Fanshawe Family History
Fanshawe Name Meaning
probably from Fanshaw Gate in Holmesfield (Derbys) which is recorded as le Faunchallegatehede in 1456 and Fawnchallegate in 1472 although this place may take its name from the family in which case the ultimate origin of the surname in unknown. In either case the etymology is uncertain.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016