Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 09-30-2024.

Submitted and Maintained by Bill Marshall, bill.marshall@verizon.net.


Additions and corrections appreciated (especially with sources). My current list of sources is here. Homepage here.

Index of Medieval and Ancient Lines is here, notable people here, and Gedcom available to be downloaded.

Index of Modern Lines (immigrants to America and their descendants) is here, notable people here, and Gedcom here.


Individual Page


Family:
Marriage:
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]*].

Sources for birth and parent Information
parents:
[Ref: Reitwiesner Joan p81]
Sources with Information about marriage to Iorwerth FYCHAN
names:
[Ref: Reitwiesner Joan p81]
Sources with Information about marriage to Maredudd Ap MADOG AP GRUFFUDD
names:
[Ref: Reitwiesner Joan p81]
Research Notes:



Pedigree of Catrin
                                                                /-----Idwal Prince Of North Wales
                                                       /-----Iago Ab Idwal, Prince Of Gwynedd
                                              /-----Cynan Ap Iago, Prince Of North Wales
                                     /-----Gruffydd Ap Cynan, Prince Of Gwynedd
                                    |        |                  /-----Sihtric III Of The Silken Beard OLAFSON, King Of Dublin
                                    |        |         /-----Olaf Of Dublin
                                    |        |        |         \-----Slani
                                    |         \-----Ragnaillt Of Dublin
                                    |                 |         /-----Dunlang Ui DUNLAINGE, King Of Laigin & Leinster
                                    |                  \-----Maelcorcre Of Leinster
                            /-----Owain Gwynedd Prince Of Gwynedd
                           |        |                  /-----Edwin Ap Gronwy Of Tegeingl
                           |        |         /-----Owain Ap Edwin
                           |        |        |        |         /-----Cynfyn Ap Gwerystan
                           |        |        |         \-----Iwerydd Ferch Cynfyn
                           |         \-----Angharat Of Tegaingl
                           |                 |         /-----Ednywain Bendew I Ap Neinad
                           |                  \-----Morwyl Ferch Ednywain Bendew
                   /-----Iorworth Drwyndwn Prince Of Gwynedd
                  |        |                           /-----Caradog
                  |        |                  /-----Trahaern Of Arwystil, King Of Gwynedd
                  |        |         /-----Llywarch
                  |         \-----Gladys Ferch Llywarch
                  |                  \-----Dyddgu Of Builth
          /-----Llewellyn Fawr The Great AP IORWORTH, Prince Of North Wales
         |        |                                             /-----Gwerystan
         |        |                                    /-----Cynfyn Ap Gwerystan
         |        |                           /-----Bleddyn Ap Cynfyn, King Of Gwynedd And Powys
         |        |                          |        |         /-----Maredudd Ab Owain, Prince Of Deheubarth
         |        |                          |         \-----Angharad Ferch Maredudd
         |        |                  /-----Maredudd Ap Bleddyn
         |        |                 |        |         /-----Cillin Y Blaidd Rhudd
         |        |                 |         \-----Haer Ferch Cillin
         |        |         /-----Madog Ap Maredudd, Prince Of Powys Fadog
         |        |        |        |         /-----Einudd
         |        |        |         \-----Hunydd Ferch Einudd
         |         \-----Margred Ferch Madog
         |                 |                                    /-----Idwal Prince Of North Wales
         |                 |                           /-----Iago Ab Idwal, Prince Of Gwynedd
         |                 |                  /-----Cynan Ap Iago, Prince Of North Wales
         |                 |         /-----Gruffydd Ap Cynan, Prince Of Gwynedd
         |                 |        |        |                  /-----Sihtric III Of The Silken Beard OLAFSON, King Of Dublin
         |                 |        |        |         /-----Olaf Of Dublin
         |                 |        |        |        |         \-----Slani
         |                 |        |         \-----Ragnaillt Of Dublin
         |                 |        |                 |         /-----Dunlang Ui DUNLAINGE, King Of Laigin & Leinster
         |                 |        |                  \-----Maelcorcre Of Leinster
         |                  \-----Susanna Ferch Gruffudd Ap Cynan
         |                          |                  /-----Edwin Ap Gronwy Of Tegeingl
         |                          |         /-----Owain Ap Edwin
         |                          |        |        |         /-----Cynfyn Ap Gwerystan
         |                          |        |         \-----Iwerydd Ferch Cynfyn
         |                           \-----Angharat Of Tegaingl
         |                                   |         /-----Ednywain Bendew I Ap Neinad
         |                                    \-----Morwyl Ferch Ednywain Bendew
 /-----Gruffydd Ap Llywelyn
|        |         /-----Llywarch Goch
|         \-----Tangwystl Of Rhos
Catrin
|                                    /-----Godred III Crovan King Of Man And Dublin
|                           /-----Olaf I King Of Man
|                  /-----Godred IV King Of Man
|                 |        |         /-----Fergus Lord Of Galloway
|                 |         \-----Aufrica Of Galloway
|                 |                 |                           /-----Robert I The Devil Duke Of Normandy
|                 |                 |                  /-----William The Conqueror King Of England
|                 |                 |                 |         \-----Herleve Of Falaise
|                 |                 |         /-----Henry I Beauclerc King Of England
|                 |                 |        |        |         /-----Baldwin V Count Of Flanders
|                 |                 |        |         \-----Maud Of Flanders
|                 |                 |        |                  \-----Adelaide Of France
|                 |                  \-----Sibyl/Elizabeth
|                 |                          |                  /-----Corbet
|                 |                          |         /-----Robert CORBET, Lord of Alcester
|                 |                           \-----Sibyl CORBET
|         /-----Rheinallt King Of Isle Of Man
 \-----Rhanullt
         |         /-----(Unk)
          \-----(Unk)



Descendants of Catrin
1. Catrin m1. Iorwerth FYCHAN m2. Maredudd Ap MADOG AP GRUFFUDD
m. Iorwerth FYCHAN
m. Maredudd Ap MADOG AP GRUFFUDD father: Madog AP GRUFFYD MAELOR