Plantagenet Ancestry of 17th Century Colonists, Pages: 324 @ 1st ed, p 109 "FitzWalter", dau of Henry de Percy, no mother
The cited information was published by Genealogical Publishing Co., Baltimore, MD, 1996 (Ref: 1st ed, p 109 "FitzWalter", dau of Henry de Percy, no mother) The author/originator was David Faris.