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. John FITZ THOMAS Death: 23 Jul 1261 in Callan In Kerry
  2. Maurice FITZ THOMAS Birth: Abt 1197 Death: Before 1253

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]*].
  2. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 04 Dacre-Dysart. London: St Catherine Press, 1916. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Vol 4 also available at http://archive.org/completepeerageo04byucoka Information from this source tagged as [Ref: CP IV [Ap][p0-9].*].
  3. 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].*].

Sources for birth and parent Information
date:
third son [Ref: Burke Peerage p1165],
parents:
[Ref: Burke Peerage p1200, CP VII p200],
father:
[Ref: Burke Peerage p1165]
Sources for death Information
date:
[Ref: Burke Peerage p1165, CP VII p200, CP VII p202]
1213 or 1214 [Ref: CP IV p233]
before 1214-5 [Ref: CP IV p234(c)]
Sources with Information about marriage to Sabine
date:
first marriage of Sabine [Ref: CP IV p234(c)],
child:
[Ref: CP IV p233, CP VII p200]
Sources with Inaccurate marriage information
names:
Thomas Fitz MAURICE & Elinor dau of Jordan de Marisco [Ref: Burke Peerage p1165]
Research Notes:
ancestor of the FitzGeralds, extinct Earls of Desmond, the White Knight, the Knight of Glyn, and the Knight of Kerry, and the FitzMaurices, Lords of Kerry [Ref: Burke Peerage p1200]



Pedigree of Thomas FITZ MAURICE
                                              /-----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
Thomas FITZ MAURICE
|                                    /-----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
|        |        |                          |        |         /-----(Unk)
|        |        |                          |         \-----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
         |                                                      /-----Lorcan Dal Cais King Of Munster And Thomond
         |                                             /-----Cennetig Dal Cais King Of Munster And Thomond
         |                                    /-----Brian Boruma, King Of Cashel And Munster, High
         |                                   |        |         /-----Aurchad King Of Ui Briuin Or West Connacht
         |                                   |         \-----Be Bind
         |                                   |                  \-----Osnadh
         |                           /-----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
         |        |        |                                    /-----Cellach Mac Cerbaill, King Of Osraige
         |        |        |                           /-----Donnchad King Of Ossory
         |        |        |                          |         \-----Echrad
         |        |        |                  /-----Gilla Patraic Mac Donnchada, King Of Ossory
         |        |        |                 |        |         /-----Faelan Mac Cormac, King Of Dessi
         |        |        |                 |         \-----Aife
         |        |        |         /-----Tadc Mac Gilla Patraic
         |        |         \-----Derbforgaill
          \-----Lafrocoth



Descendants of Thomas FITZ MAURICE
1. Thomas FITZ MAURICE m. Sabine
m. Sabine

2nd generation

2. John FITZ THOMAS m. Margery
m. Margery father: Thomas Fitz Anthony
3. Maurice FITZ THOMAS m.

3rd generation

4. Morice FITZ JOHN m. Maud De BARRY
m. Maud De BARRY
5. Thomas FITZ MAURICE m.

4th generation

6. Thomas FITZ MORICE m. Margaret BERKELEY
m. Margaret BERKELEY father: Sir Thomas De BERKELEY, Lord Berkeley mother: Joan De FERRERS
7. Maurice FITZ THOMAS, Lord Kerry m1. Ellen FITZ WILLIAM m2. Sibyl
m. Ellen FITZ WILLIAM father: William FITZ ELIE
m. Sibyl

5th generation

10. Morice FITZ THOMAS, Earl Of Desmond m1. Katherine BURGH m2. Margaret O'BRIEN m3. Aveline Fitz Nicholas
m. Katherine BURGH father: Richard De BURGH, Earl Of Ulster mother: Margaret Of Guines
m. Margaret O'BRIEN father: Connor O'BRIEN, Prince Of Thomond
m. Aveline Fitz Nicholas father: Nicholas FITZ MAURICE, Lord Kerry mother: Slany O'BRIEN
12. Joanna FITZ THOMAS m. Richard De CLARE, Lord Clare, Lord Of Thomond
m. Richard De CLARE, Lord Clare, Lord Of Thomond father: Thomas DeCLARE, Lord Of Thomond mother: Julian FITZ MAURICE
13. Nicholas FITZ MAURICE, Lord Kerry m. Slany O'BRIEN
m. Slany O'BRIEN father: Connor O'BRIEN, Prince Of Thomond