Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 12-10-2023.

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 may be downloaded here.

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


Individual Page

    Person Info
  • Name: Maredudd Ap RHYS
  • Sex: M
  • Birth: Abt 1222 b
  • Death: 22 Jul 1271 in Dryslwyn, Carmarthenshire d
  • Burial: Whitland Abbey u


    • Parents:
  • Father:
  • Rhys GRYG Birth: 4 Death: 1233
    • Mother:
  • Joan DE CLARE

Family:
Marriage: Children:
  1. Sir Rhys Ap MAREDUDD Death: Abt 29 Sep 1291 in York

Bibliography
  1. Ravilious, John, Rhys Mechyll and Maud de Braose. Posting to soc.genealogy.medieval (email list GEN-MEDIEVAL) on 9/1/2006. Subject: Rhys Mechyll and Maud de Braose redux. Available at https://groups.google.com/g/soc.genealogy.medieval/c/VdjAc2v04sQ/m/Dj6y3W_D6eAJ. Author address: Therav3 at aol dot com. Information from this source tagged as [Ref: John Ravilious SGM 9/1/2006-070451].
  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 v2p[0-9]*].

Sources for birth and parent Information
date:
in or before 1222 [Ref: Richardson RoyalAnc v2p183],
parents:
[Ref: Richardson RoyalAnc v2p183],
father:
[Ref: John Ravilious SGM 9/1/2006-070451]
Sources for death Information
date:
[Ref: Richardson RoyalAnc v2p183]
after 1270 [Ref: John Ravilious SGM 9/1/2006-070451],
place:
[Ref: Richardson RoyalAnc v2p183]
Sources for burial Information
place:
[Ref: Richardson RoyalAnc v2p183]
Sources with Information about marriage to Isabel MARSHALL
date:
abt 1234/41 [Ref: Richardson RoyalAnc v2p183],
names:
Maredudd Ap RHYS & illeg dau William MARSHAL [Ref: John Ravilious SGM 9/1/2006-070451]
Maredudd ap RHYS & niece of Gilbert MARSHAL [Ref: Richardson RoyalAnc v2p183],
child:
[Ref: John Ravilious SGM 9/1/2006-070451, Richardson RoyalAnc v2p183]
Research Notes:
of Dryslwyn and Llandovery, Carmarthenshire [Ref: Richardson RoyalAnc v2p183]



Pedigree of Maredudd Ap RHYS
          /-----Rhys Ap Griffith, Prince Of South Wales
 /-----Rhys GRYG
Maredudd Ap RHYS
|                                                               /-----Godfrey Count Of Brionne
|                                                      /-----Gilbert Count Of Brionne
|                                             /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
|                                    /-----Gilbert FITZ RICHARD, Baron Of Clare
|                                   |        |                  /-----Osbern De Bolbec, Seigneur Of Longueville
|                                   |        |         /-----Walter Giffard Lord Of Longueville
|                                   |        |        |         \-----Wevie
|                                   |         \-----Rohese GIFFARD
|                                   |                 |         /-----Gerard De FLEITELL
|                                   |                  \-----Ermengarde FLATEL
|                           /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
|                          |        |                           /-----Hugh Butler Of France
|                          |        |                  /-----Renaud Count Of Clermont
|                          |        |         /-----Hugh Count Of Clermont
|                          |        |        |         \-----Ermengardis
|                          |         \-----Adeliza De CLERMONT
|                          |                 |                  /-----Hildouin II De Rameru
|                          |                 |         /-----Hildouin III De Rameru, Count Of Montdidier And Roucy
|                          |                 |        |         \-----Anonima
|                          |                  \-----Margaret De Roucy
|                          |                          |         /-----Ebles I Count Of Rheims And Roucy
|                          |                           \-----Adele De Roucy
|                          |                                    \-----Beatrix Of Hainault
|                  /-----Roger De CLARE, Earl Of Hertford
|                 |        |                                    /-----Anschitil Vicomte Of The Bessin
|                 |        |                           /-----Ranulph I De MESCHINES, Vicomte De Bayeux
|                 |        |                  /-----Ranulph II De MESCHINES, Vicomte De Bayeux
|                 |        |                 |        |         /-----Richard III Duke Of Normandy
|                 |        |                 |         \-----Alice Of Normandy
|                 |        |         /-----Ranulph III De MESCHINES, Earl Of Chester
|                 |        |        |        |                  /-----Turstain De Goz, Vicount Of Hiemois
|                 |        |        |        |         /-----Richard Le Goz, Vicomte D'Avranches
|                 |        |        |         \-----Margaret Le Goz
|                 |        |        |                  \-----Emma
|                 |         \-----Adeliza Le MESCHIN
|                 |                 |                  /-----(Unk)
|                 |                 |         /-----Thorold Of Buckingham, Sheriff Of Lincoln
|                 |                  \-----Lucia Of East Angies
|                 |                          |         /-----William MALET
|                 |                           \-----(Unk Dau)
|                 |                                   |         /-----Gilbert Crespin, Lord Of Tillieres
|                 |                                    \-----Esilia CRISPIN
|                 |                                             \-----Gunnor De ANJOU
|         /-----Richard De CLARE, Earl Of Hertford, MC Surety
|        |        |                                    /-----(Unk) De St James
|        |        |                           /-----Eudo De St James
|        |        |                  /-----Hasculf De St JAMES, Baron Of Field Dalling
|        |        |         /-----James De St HILARY, Baron Of Field Dalling
|        |        |        |         \-----Matilda
|        |         \-----Maud St. HILLARY
|        |                  \-----Aveline
 \-----Joan DE CLARE
         |                                                      /-----Richard II The Good Duke Of Normandy
         |                                             /-----Robert I The Devil Duke Of Normandy
         |                                            |         \-----Judith Of Brittany
         |                                    /-----William The Conqueror King Of England
         |                                   |        |         /-----Fulbert Of Falaise
         |                                   |         \-----Herleve Of Falaise
         |                                   |                  \-----Duxia
         |                           /-----Henry I Beauclerc King Of England
         |                          |        |                  /-----Baldwin IV The Bearded Count Of Flanders
         |                          |        |         /-----Baldwin V Count Of Flanders
         |                          |        |        |         \-----Ogive Of Luxembourg
         |                          |         \-----Maud Of Flanders
         |                          |                 |         /-----Robert II The Pious King Of France
         |                          |                  \-----Adelaide Of France
         |                          |                           \-----Constance Of Provence
         |                  /-----Robert The Consul De CAEN, Earl Of Gloucester
         |         /-----William Meullant FITZ ROBERT, Earl Of Gloucester
         |        |        |                           /-----Hamon-Aux-Dents Lord Of Torigny
         |        |        |                  /-----Hamon Sheriff Of Kent
         |        |        |         /-----Robert FITZ HAMOND, Lord Of Tewkesbury
         |        |         \-----Maud FITZ HAMOND
         |        |                 |                           /-----Hugh De Montgomery
         |        |                 |                  /-----Roger De Montgomery, Seigneur Of Montgomery
         |        |                 |                 |         \-----Josceline
         |        |                 |         /-----Roger De Montgomery, Earl Of Shrewsbury
         |        |                 |        |         \-----Emma
         |        |                  \-----Sybil De Montgomery
         |        |                          |                  /-----William I Count Of Alencon And Bellasme
         |        |                          |         /-----William II TALVAS
         |        |                          |        |         \-----Mathilde
         |        |                           \-----Mabel De Belesme
         |        |                                   |         /-----Arnulf
         |        |                                    \-----Hildeburg
          \-----Amice MEULANT, Countess Of Gloucester
                  |                                             /-----Thorold Seigeur Of Pont-Audemer
                  |                                    /-----Humphrey De Vieilles
                  |                                   |         \-----Aveline
                  |                           /-----Roger De Beaumont
                  |                          |         \-----Aubreye De La Haie
                  |                  /-----Sir Robert De Beaumont, Earl Of Leicester
                  |                 |        |                  /-----Hugo I Count Of Meulen
                  |                 |        |         /-----Waleran Count Of Meulan
                  |                 |        |        |         \-----Oda Of Valois
                  |                 |         \-----Adelise Of Meulan
                  |                 |                  \-----Ode
                  |         /-----Sir Robert II De Beaumont, Earl Of Leicester
                  |        |        |                           /-----Robert II The Pious King Of France
                  |        |        |                  /-----Henry I King Of France
                  |        |        |                 |         \-----Constance Of Provence
                  |        |        |         /-----Hugh Magnus Duke Of France
                  |        |        |        |        |         /-----Jaroslav I Grand Prince Of Kiev
                  |        |        |        |         \-----Anne Of Kiev
                  |        |        |        |                  \-----Ingegard
                  |        |         \-----Isabel De Vermandois, Countess Of Leicester
                  |        |                 |                  /-----Eudes Count Of Vermandois
                  |        |                 |         /-----Herbert IV Count Of Vermandois
                  |        |                 |        |         \-----Parvie
                  |        |                  \-----Adelaide De Vermandois, Countess Of Vermandois
                  |        |                          |         /-----Raoul III The Great Count Of Valois And Vexin
                  |        |                           \-----Adela De Valois
                  |        |                                    \-----Adela
                   \-----Hawise DeBEAUMONT
                           |                           /-----Ralph De Gael, Earl Of Norfolk
                           |                  /-----Ralph De Gael De Montfort, Earl Of Norfolk
                           |                 |         \-----Getha
                           |         /-----Ralph De MONTFORT, Seigneur Of Montfort-Gael
                           |        |        |                  /-----Osbern De Crepon, Steward Of Normandy
                           |        |        |         /-----William Fitz Osbern, Earl Of Hereford
                           |        |        |        |         \-----Emma Abbess Of St. Amand
                           |        |         \-----Emma Fitz Osbern
                           |        |                 |         /-----Roger I De TOENI
                           |        |                  \-----Adelise De TONI
                           |        |                           \-----Godehildie
                            \-----Amicia De Gael



Descendants of Maredudd Ap RHYS
1. Maredudd Ap RHYS m. Isabel MARSHALL
m. Isabel MARSHALL father: Sir William MARSHALL, Earl Of Pembroke