Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 01-20-2025.

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: Children:
  1. David FITZ WILLIAM, Baron Of Naas
  2. William FITZ WILLIAM
  3. Maurice FITZ WILLIAM

Bibliography
  1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 07 Hussee-Lincolnshire. London: St Catherine Press, 1929. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP VII [Ap][p0-9].*].
  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 v4p[0-9]*].

Sources for birth and parent Information
parents:
[Ref: CP VII p200, Richardson RoyalAnc v4p339, Richardson RoyalAnc v4p39]
Sources for death Information
date:
1227 [Ref: CP VII p200]
shortly before 23 Mar 1227 [Ref: Richardson RoyalAnc v4p39]
Sources with Information about marriage to Maud De PONT De L'ARCHE
date:
second marriage of Maud [Ref: Richardson RoyalAnc v4p39],
names:
[Ref: CP VII p200, Richardson RoyalAnc v4p340],
child:
[Ref: Richardson RoyalAnc v4p39]
Research Notes:
2nd Baron of Naas [Ref: CP VII p200]
Baron of Naas, co Kildare [Ref: Richardson RoyalAnc v4p339, Richardson RoyalAnc v4p39]

heir of his father [Ref: Richardson RoyalAnc v4p39]



Pedigree of William FITZ WILLIAM, Baron Of Naas
                                                       /-----Cosmus Duke Of Florence
                                              /-----Otterus Baron Of Gherardini Of Florence
                                     /-----Otho GERALDINO, Baron Of Windsor
                            /-----Walter FITZ OTHO, Baron Of Eton
                   /-----Gerald Of Windsor, Constable Of Pembroke Castl
                  |         \-----Beatrice
          /-----Maurice FITZ GERALD, Lord Of Lanstephen
         |        |         /-----Rhys Ap Tudor Mawr Prince Of South Wales
         |         \-----Nest Of Wales, Princess Of Deheubarth
         |                 |         /-----Rhiwallon Ap Cynfn Of Powys
         |                  \-----Gladys Of Powys
 /-----William FITZ MAURICE, Baron Of Naas
|        |                                    /-----Hugh De Montgomery
|        |                           /-----Roger De Montgomery, Seigneur Of Montgomery
|        |                          |         \-----Josceline
|        |                          |                 |         /-----(Unk) Forquelar Of Cirques
|        |                          |                  \-----Senfrie
|        |                  /-----Roger De Montgomery, Earl Of Shrewsbury
|        |                 |         \-----Emma
|        |         /-----Arnulph De MONTGOMERY
|        |        |        |                                    /-----Yves De BELLEME, Seigneur De Belleme
|        |        |        |                           /-----Guilleume Lord of Belleme
|        |        |        |                          |         \-----Godehaut
|        |        |        |                  /-----William I Count Of Alencon And Bellasme
|        |        |        |                 |         \-----Mathilda Dame De Conde-Sur-Noireau
|        |        |        |         /-----William II TALVAS
|        |        |        |        |         \-----Mathilde
|        |        |         \-----Mabel De Belesme
|        |        |                 |         /-----Arnulf
|        |        |                  \-----Hildeburg
|         \-----Alice De MONTGOMERY
|                 |                                             /-----Cennetig Dal Cais King Of Munster And Thomond
|                 |                                    /-----Brian Boruma, King Of Cashel And Munster, High
|                 |                                   |         \-----Be Bind
|                 |                           /-----Tadg Mac Briain
|                 |                          |        |         /-----Carrlus Mac AILELLA, King Of Ui Adea Ocba
|                 |                          |         \-----Echrad
|                 |                  /-----Tairrdelbach Mac TADG, King Of Cashel And Munster, Hi
|                 |                 |        |         /-----Gilla Brigte Ua Mael Muaid, King Of Cenel Fiachach
|                 |                 |         \-----Mor
|                 |         /-----Muirchertach Ua BRIAIN, High King Of Ireland
|                 |        |        |                           /-----Donnchad King Of Ossory
|                 |        |        |                  /-----Gilla Patraic Mac Donnchada, King Of Ossory
|                 |        |        |                 |         \-----Aife
|                 |        |        |         /-----Tadc Mac Gilla Patraic
|                 |        |         \-----Derbforgaill
|                  \-----Lafrocoth
William FITZ WILLIAM, Baron Of Naas
|                                                               /-----Richard I The Fearless Duke Of Normandy
|                                                      /-----Godfrey Count Of Brionne
|                                                     |         \-----Gunnora
|                                             /-----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
|                          |        |        |        |         /-----(Unk) Forquelar Of Cirques
|                          |        |        |         \-----Wevie
|                          |         \-----Rohese GIFFARD
|                          |                 |         /-----Gerard De FLEITELL
|                          |                  \-----Ermengarde FLATEL
|                  /-----Gilbert De CLARE, Earl Of Pembroke
|                 |        |                                    /-----Renaud
|                 |        |                           /-----Hugh Butler Of France
|                 |        |                  /-----Renaud Count Of Clermont
|                 |        |         /-----Hugh Count Of Clermont
|                 |        |        |         \-----Ermengardis
|                 |         \-----Adeliza De CLERMONT
|                 |                 |                           /-----Hildouin I Seigneur De Rameru
|                 |                 |                  /-----Hildouin II De Rameru
|                 |                 |         /-----Hildouin III De Rameru, Count Of Montdidier And Roucy
|                 |                 |        |         \-----Anonima
|                 |                  \-----Margaret De Roucy
|                 |                          |                  /-----Giselbert Count Of Roucy
|                 |                          |         /-----Ebles I Count Of Rheims And Roucy
|                 |                          |        |         \-----(Unk Dau)
|                 |                           \-----Adele De Roucy
|                 |                                   |         /-----Regnier IV Count Of Hainault
|                 |                                    \-----Beatrix Of Hainault
|                 |                                             \-----Hedwig Of France
|         /-----Richard "Strongbow" De CLARE, Earl Of Pembroke
|        |        |                                             /-----Torf The Rich
|        |        |                                    /-----Thorold Seigeur Of Pont-Audemer
|        |        |                                   |         \-----Etemberga De Briquebec
|        |        |                           /-----Humphrey De Vieilles
|        |        |                          |        |         /-----(Unk) Forquelar Of Cirques
|        |        |                          |         \-----Aveline
|        |        |                  /-----Roger De Beaumont
|        |        |                 |         \-----Aubreye De La Haie
|        |        |         /-----Sir Robert De Beaumont, Earl Of Leicester
|        |        |        |        |                           /-----Galeran II Count Of Meulen
|        |        |        |        |                  /-----Hugo I Count Of Meulen
|        |        |        |        |         /-----Waleran Count Of Meulan
|        |        |        |        |        |        |         /-----Walter II Count Of Amiens, Valois, And The Vexin
|        |        |        |        |        |         \-----Oda Of Valois
|        |        |        |        |        |                  \-----Adele
|        |        |        |         \-----Adelise Of Meulan
|        |        |        |                  \-----Ode
|        |         \-----Elizabeth De BEAUMONT
|        |                 |                                    /-----Hugh Capet King Of France
|        |                 |                           /-----Robert II The Pious King Of France
|        |                 |                          |         \-----Adelaide Of Poitou
|        |                 |                  /-----Henry I King Of France
|        |                 |                 |        |         /-----William I Count Of Aries And Provence
|        |                 |                 |         \-----Constance Of Provence
|        |                 |                 |                  \-----Adelaide (Blanch) Of Anjou
|        |                 |         /-----Hugh Magnus Duke Of France
|        |                 |        |        |                  /-----Saint Vladimir Grand Prince Of Kiev
|        |                 |        |        |         /-----Jaroslav I Grand Prince Of Kiev
|        |                 |        |        |        |         \-----Rogneide Of Polotzk
|        |                 |        |         \-----Anne Of Kiev
|        |                 |        |                 |         /-----Olaf III SKOTKONUNG, King Of Sweden
|        |                 |        |                  \-----Ingegard
|        |                 |        |                           \-----Astrid
|        |                  \-----Isabel De Vermandois, Countess Of Leicester
|        |                          |                           /-----Herbert III Count Of Vermandois
|        |                          |                  /-----Eudes Count Of Vermandois
|        |                          |                 |         \-----Ermengarde Of Bar
|        |                          |         /-----Herbert IV Count Of Vermandois
|        |                          |        |         \-----Parvie
|        |                           \-----Adelaide De Vermandois, Countess Of Vermandois
|        |                                   |                  /-----Raoul II Seigneur Of Crepy And Valois
|        |                                   |         /-----Raoul III The Great Count Of Valois And Vexin
|        |                                   |        |         \-----Adelaide Of Bretemil
|        |                                    \-----Adela De Valois
|        |                                            |         /-----Nocher III Count Of Bar-Sur-Aube
|        |                                             \-----Adela
 \-----Aline De CLARE



Descendants of William FITZ WILLIAM, Baron Of Naas
1. William FITZ WILLIAM, Baron Of Naas m. Maud De PONT De L'ARCHE
m. Maud De PONT De L'ARCHE father: Robert De PONT De L'ARCHE mother: Maud MARSHALL