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Family:
Marriage:
Bibliography
  1. Burke, Sir John Bernard, Genealogical and Heraldic History of the Peerage Baronetage and Knightage. 99th edition. London: Burke's Peerage, 1949. Available at http://archive.org/details/burkesgenealogic1949unse. Information from this source tagged as [Ref: Burke Peerage [cx0-9]*].

Sources for birth and parent Information
parents:
[Ref: Burke Peerage p293]
Sources with Information about marriage to Generis VYCHAN
names:
[Ref: Burke Peerage p293]
Research Notes:
of Penrhyn [Ref: Burke Peerage p293]



Pedigree of Griffith Ap Gwillym
                                     /-----Ednyfed Fychan Ap Cynwrig Seneschal Of Gwynedd
                            /-----Sir Tudor Ap Ednyfed Vychan
                           |        |         /-----Llywarch Ap Bran Lord Of Menai
                           |         \-----Tangwystl
                           |                  \-----Rhaol
                   /-----Heilin Ap Tudor
                  |        |                                    /-----Cynan Ap Iago, Prince Of North Wales
                  |        |                           /-----Gruffydd Ap Cynan, Prince Of Gwynedd
                  |        |                          |         \-----Ragnaillt Of Dublin
                  |        |                  /-----Cadwaladr Ap Gruffydd
                  |        |                 |        |         /-----Owain Ap Edwin
                  |        |                 |         \-----Angharat Of Tegaingl
                  |        |                 |                  \-----Morwyl Ferch Ednywain Bendew
                  |        |         /-----Richard Ap Cadwaladr
                  |        |        |        |                  /-----Gilbert FITZ RICHARD, Baron Of Clare
                  |        |        |        |         /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
                  |        |        |        |        |         \-----Adeliza De CLERMONT
                  |        |        |         \-----(Unk Dau) De CLARE
                  |        |        |                 |         /-----Ranulph III De MESCHINES, Earl Of Chester
                  |        |        |                  \-----Adeliza Le MESCHIN
                  |        |        |                           \-----Lucia Of East Angies
                  |         \-----Alice Ap Richard
          /-----Griffith Ap Heilin
         |         \-----Agnes Ap Bleddyn
 /-----Gwillym Ap Griffith
|        |                  /-----Tudor Ap Madoc
|        |         /-----Griffith Ap Tudor
|         \-----Eva Ap Griffith
Griffith Ap Gwillym
|         /-----Ievan Ap Griffith
 \-----Hwyfa Ap Ievan



Descendants of Griffith Ap Gwillym
1. Griffith Ap Gwillym m. Generis VYCHAN
m. Generis VYCHAN