The Weasley Family's Arthurian Names

There is a running theme of Arthurian legend in some of the Weasley family names. The father is named Arthur; the daughter is named Ginevra, which is the Italian form of Guinevere; a son is named Percy, which is a shortened form of Percival, and the youngest son is named Ron, the name of Arthur's spear in Geoffrey of Monmouth's Historia Regum Britanniae, and in the "Brut" poems of Wace and Layamon[3][4] (it was originally "Rhongomynyad" in Welsh legend).

http://en.wikipedia.org/wiki/Weasley_family