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:
Bibliography
  1. Reed, Paul C., The hitherto unknown marriages of Llywelyn of North Wales, parts 1/2/3/4/5. Posting to soc.genealogy.medieval (email list GEN-MEDIEVAL) on 10/20/1999. Subject: The hitherto unknown marriages of Llywelyn of North Wales. Available at https://groups.google.com/g/soc.genealogy.medieval/c/XGUtYFGepPA/m/HDMNNlTqqdIJ, https://groups.google.com/g/soc.genealogy.medieval/c/XGUtYFGepPA/m/fCtJ5tk7saUJ, https://groups.google.com/g/soc.genealogy.medieval/c/XGUtYFGepPA/m/byVTRTB5UZEJ, https://groups.google.com/g/soc.genealogy.medieval/c/XGUtYFGepPA/m/l_YHoSzKm_UJ, and https://groups.google.com/g/soc.genealogy.medieval/c/XGUtYFGepPA/m/hrspnnQGOEAJ. Author address: reedpcgen at aol dot com. Information from this source tagged as [Ref: Paul Reed SGM 10/20/1999].

Sources for birth and parent Information
parents:
Iorwerth & dau Madog ap Meredydd [Ref: Paul Reed SGM 10/20/1999]
Research Notes:



Pedigree of Adda Ap IORWERTH Prince Of Gwynedd
                                                                /-----Idwal Foel Prince Of Gwynedd
                                                       /-----Meyric Prince Of North Wales
                                                      |         \-----Avendreg Of Powys
                                              /-----Idwal Prince Of North Wales
                                     /-----Iago Ab Idwal, Prince Of Gwynedd
                            /-----Cynan Ap Iago, Prince Of North Wales
                   /-----Gruffydd Ap Cynan, Prince Of Gwynedd
                  |        |                                    /-----Sitric II CAOCH, King Of Dublin
                  |        |                           /-----Olaf III Sihtricsson, King Of Yorks And Dublin
                  |        |                  /-----Sihtric III Of The Silken Beard OLAFSON, King Of Dublin
                  |        |                 |        |         /-----Murchad Ui DUNLAINGE, King Of Laigin & Leinster
                  |        |                 |         \-----Gormflaith Of Nass
                  |        |                 |                  \-----(Unk Princess) Of Connacht
                  |        |         /-----Olaf Of Dublin
                  |        |        |        |                  /-----Cennetig Dal Cais King Of Munster And Thomond
                  |        |        |        |         /-----Brian Boruma, King Of Cashel And Munster, High
                  |        |        |        |        |         \-----Be Bind
                  |        |        |         \-----Slani
                  |        |        |                 |         /-----Carrlus Mac AILELLA, King Of Ui Adea Ocba
                  |        |        |                  \-----Echrad
                  |         \-----Ragnaillt Of Dublin
                  |                 |                           /-----Augaire Ui DUNLAINGE, King Of Laigin & Leinster
                  |                 |                  /-----Tuathal Ui DUNLAINGE, King Of Laigin & Leinster
                  |                 |         /-----Dunlang Ui DUNLAINGE, King Of Laigin & Leinster
                  |                  \-----Maelcorcre Of Leinster
          /-----Owain Gwynedd Prince Of Gwynedd
         |        |                  /-----Edwin Ap Gronwy Of Tegeingl
         |        |         /-----Owain Ap Edwin
         |        |        |        |                  /-----Gwerystan
         |        |        |        |         /-----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
Adda Ap IORWERTH Prince Of Gwynedd
|                                             /-----Gwerystan
|                                    /-----Cynfyn Ap Gwerystan
|                           /-----Bleddyn Ap Cynfyn, King Of Gwynedd And Powys
|                          |        |                           /-----Hywel Dda Ap Cadell, Prince Of Deheubarth
|                          |        |                  /-----Owain Ap Hywel, Prince Of Deheubarth
|                          |        |                 |         \-----Elen Ferch Llywarch
|                          |        |         /-----Maredudd Ab Owain, Prince Of Deheubarth
|                          |        |        |        |         /-----Llywelyn Ap Merfyn
|                          |        |        |         \-----Angharad Ferch Llywelyn
|                          |         \-----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 Foel Prince Of Gwynedd
         |                                             /-----Meyric Prince Of North Wales
         |                                            |         \-----Avendreg Of Powys
         |                                    /-----Idwal Prince Of North Wales
         |                           /-----Iago Ab Idwal, Prince Of Gwynedd
         |                  /-----Cynan Ap Iago, Prince Of North Wales
         |         /-----Gruffydd Ap Cynan, Prince Of Gwynedd
         |        |        |                                    /-----Sitric II CAOCH, King Of Dublin
         |        |        |                           /-----Olaf III Sihtricsson, King Of Yorks And Dublin
         |        |        |                  /-----Sihtric III Of The Silken Beard OLAFSON, King Of Dublin
         |        |        |                 |        |         /-----Murchad Ui DUNLAINGE, King Of Laigin & Leinster
         |        |        |                 |         \-----Gormflaith Of Nass
         |        |        |                 |                  \-----(Unk Princess) Of Connacht
         |        |        |         /-----Olaf Of Dublin
         |        |        |        |        |                  /-----Cennetig Dal Cais King Of Munster And Thomond
         |        |        |        |        |         /-----Brian Boruma, King Of Cashel And Munster, High
         |        |        |        |        |        |         \-----Be Bind
         |        |        |        |         \-----Slani
         |        |        |        |                 |         /-----Carrlus Mac AILELLA, King Of Ui Adea Ocba
         |        |        |        |                  \-----Echrad
         |        |         \-----Ragnaillt Of Dublin
         |        |                 |                           /-----Augaire Ui DUNLAINGE, King Of Laigin & Leinster
         |        |                 |                  /-----Tuathal Ui DUNLAINGE, King Of Laigin & Leinster
         |        |                 |         /-----Dunlang Ui DUNLAINGE, King Of Laigin & Leinster
         |        |                  \-----Maelcorcre Of Leinster
          \-----Susanna Ferch Gruffudd Ap Cynan
                  |                  /-----Edwin Ap Gronwy Of Tegeingl
                  |         /-----Owain Ap Edwin
                  |        |        |                  /-----Gwerystan
                  |        |        |         /-----Cynfyn Ap Gwerystan
                  |        |         \-----Iwerydd Ferch Cynfyn
                   \-----Angharat Of Tegaingl
                           |         /-----Ednywain Bendew I Ap Neinad
                            \-----Morwyl Ferch Ednywain Bendew



Descendants of Adda Ap IORWERTH Prince Of Gwynedd
1. Adda Ap IORWERTH Prince Of Gwynedd