Individual Page


Family:
Marriage:
Bibliography
  1. Reitwiesner, William Addams, The Children of Joan, Princess of North Wales, The Genealogist (APSG), vol 1 no 1 (1981), p80-95. NYPL APA 82-1000. Available at https://www.americanancestors.org/databases/genealogist-the/image/. Information from this source tagged as [Ref: Reitwiesner Joan p[0-9]*].
  2. Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v5p[0-9]*].

Sources for birth and parent Information
parents:
[Ref: Reitwiesner Joan p84]
Sources for death Information
date:
[Ref: Reitwiesner Joan p84]
Sources with Information about marriage to Gwenllian Las
names:
[Ref: Reitwiesner Joan p84, Richardson RoyalAnc v5p298]
Research Notes:
killed in battle against Cathall O'Reilly in 1233 [Ref: Reitwiesner Joan p84]



Pedigree of William De LACY
 /-----Hugh De LACY, Lord Of Stanton Lacy
William De LACY
|         /-----Roderick O'CONNOR, King Of Connaught
 \-----Rose O'CONNOR



Descendants of William De LACY
1. William De LACY m. Gwenllian Las
m. Gwenllian Las father: Llewellyn Fawr The Great AP IORWORTH, Prince Of North Wales mother: Tangwystl Of Rhos