Royalty for Commoners: The complete Known Lineage of John of @ A follower of Knut, King of England. Possibly not the father of
Gytha.
The cited information was published by Genealogical Publishing Comp, Baltimore, MD, 1993 (Ref: A follower of Knut, King of England. Possibly not the father of
Gytha.) The author/originator was Roderick W. Stuart.
Source Notes
subtitled The Complete Known Lineage of John of Gaunt, son of
Edward III King of England & Queen Philippa. Reviewed in TAG,
April 1994 by Dr. David H. Kelly