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: Children:
  1. Margaret O'BRIEN

Marriage: Children:
  1. Henry O'BRIEN, Earl Of Thomond Birth: Abt 1588 Death: Abt 22 Apr 1639
  2. Barnabas O'BRIEN, Earl Of Thomond Birth: Abt 1590 Death: 15 Nov 1657

Bibliography
  1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 03 Canonteigh-Cutts. London: St Catherine Press, 1913. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Vol 3 also available at http://archive.org/completepeerageo03coka Information from this source tagged as [Ref: CP III [Ap][p0-9].*].
  2. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 12-1, Skelmersdale-Towton. London: St Catherine Press, 1953. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP XII/1 [Ap][p0-9].*].
  3. Howard, J Jacoson, Sir Henry Lawson, Genealogical Collections Illustrating the History of Roman Catholic Families of England. Based on the Lawson Manuscript. London: private printing, 1887-92. Available at https://familysearch.org/search/film/007955230, images 1059-1117, images 1122-1153, film/007562061, images 1-1206, film/007955230, images 1158-1180. Information from this source tagged as [Ref: Howard RomCathEng p[0-9]*].

Sources for birth and parent Information
date:
first son [Ref: CP XII/1 p705],
parents:
[Ref: CP XII/1 p705]
Sources for death Information
date:
[Ref: CP XII/1 p707],
place:
[Ref: CP XII/1 p707]
Sources for burial Information
place:
[Ref: CP XII/1 p707]
Sources with Information about marriage to Helen ROCHE
date:
after Sep 1577 [Ref: CP XII/1 p707],
child:
[Ref: CP III p215]
Sources with Information about marriage to Elizabeth FITZGERALD
date:
after 6 Nov 1585 [Ref: CP XII/1 p707],
child:
[Ref: CP XII/1 p707, CP XII/1 p708]
Research Notes:
3rd Earl of Thomond, of Earldom cr 1551 [Ref: CP XII/1 p705]
4th Earl of Thomond [Ref: CP III p215]

heir of his father [Ref: CP XII/1 p705]



Pedigree of Donough O'BRIEN, Earl Of Thomond
                                                                /-----Mathgamain Moinnroy O'Brien, King Of Thomond
                                                       /-----Brian O'Brien, King Of Thomond
                                              /-----Turlogh Bog O'Brien, King Of Thomond
                                     /-----Teige O'BRIEN, Prince Of Thomond
                            /-----Turlogh Don O'BRIEN, Prince Of Thomond
                   /-----Conor O'BRIEN
                  |        |         /-----John MACNAMARA
                  |         \-----Raghnailt MACNAMARA
          /-----Donough O'BRIEN, Earl Of Thomond
         |        |         /-----Ulick De BURGH
         |         \-----Annabell De BURGH
 /-----Conor O'BRIEN, Earl Of Thomond
|        |                                                      /-----James BUTLER, Earl Of Ormond
|        |                                             /-----James BUTLER, Earl Of Ormond
|        |                                            |         \-----Elizabeth DARCY
|        |                                    /-----Sir Richard BUTLER
|        |                                   |        |         /-----John De WELLES, Lord Welles
|        |                                   |         \-----Anne WELLES
|        |                                   |                  \-----Maud De ROS
|        |                           /-----Sir Edmund BUTLER
|        |                          |        |         /-----Gildas O'REILLY
|        |                          |         \-----Catherine O'REILLY
|        |                  /-----Sir James BUTLER
|        |                 |        |                  /-----Teige O'CARROLL
|        |                 |        |         /-----Melroona O'CARROLL
|        |                 |        |        |        |         /-----James BUTLER, Earl Of Ormond
|        |                 |        |        |         \-----Joan BUTLER
|        |                 |        |        |                  \-----Elizabeth DARCY
|        |                 |         \-----Shile O'CARROLL
|        |                 |                  \-----Bibiana O'DEMPSEY
|        |         /-----Sir Piers BUTLER, Earl Of Ormond
|        |        |        |         /-----Donald Reagh MacMorrogh KAVANAGH
|        |        |         \-----Sabine KAVANAGH
|         \-----Ellen BUTLER
|                 |                                             /-----Maurice FITZ THOMAS FITZ GERALD, Earl Of Kildare
|                 |                                    /-----John FITZ GERALD, Earl Of Kildare
|                 |                                   |         \-----Elizabeth De BURGHERSH
|                 |                           /-----John Cam FITZ GERALD
|                 |                          |         \-----Margaret De La HERNE
|                 |                  /-----Thomas FITZ GERALD, Earl Of Kildare
|                 |         /-----Gerald FITZGERALD, K.G., Earl Of Kildare
|                 |        |        |                           /-----Morice FITZ THOMAS, Earl Of Desmond
|                 |        |        |                  /-----Gerald Fitz Morice, Earl Of Desmond
|                 |        |        |                 |         \-----Aveline Fitz Nicholas
|                 |        |        |         /-----James FITZ GERALD, Earl Of Desmond
|                 |        |        |        |        |         /-----James BUTLER, Earl Of Ormond
|                 |        |        |        |         \-----Alianore Le BOTILLER
|                 |        |        |        |                  \-----Elizabeth DARCY
|                 |        |         \-----Joan FITZ GERALD
|                 |        |                 |         /-----Ulick Mac RICHARD BURK
|                 |        |                  \-----Mary Mac RICHARD BURK
|                  \-----Margaret FITZGERALD
|                          |                  /-----Sir Edward FITZEUSTACE
|                          |         /-----Rowland FITZEUSTACE, Baron Portlester
|                           \-----Alison FITZEUSTACE
|                                    \-----Jenet BELLEW
Donough O'BRIEN, Earl Of Thomond
|         /-----Turlogh MAC-T-BRIEN-ARA
 \-----Ownye



Descendants of Donough O'BRIEN, Earl Of Thomond
1. Donough O'BRIEN, Earl Of Thomond m1. Helen ROCHE m2. Elizabeth FITZGERALD
m. Helen ROCHE father: Maurice ROCHE, Viscount Fermoy mother: Eleanor FITZ GERALD
m. Elizabeth FITZGERALD father: Gerald FITZGERALD, Earl Of Kildare mother: Mable BROWNE

2nd generation

2. Margaret O'BRIEN m. Cormac Oge MacCARTY, Viscount Muskerry
m. Cormac Oge MacCARTY, Viscount Muskerry
3. Henry O'BRIEN, Earl Of Thomond m. Mary BRERETON
m. Mary BRERETON father: William BRERETON, Lord Brereton mother: Margaret SAVAGE
4. Barnabas O'BRIEN, Earl Of Thomond m. Mary FERMOR
m. Mary FERMOR father: Sir George FERMOR mother: Mary CURSON

3rd generation

5. Donough MacCARTY, Earl of Clancarty m. Eleanor BUTLER
m. Eleanor BUTLER father: Thomas BUTLER, Viscount Thurles mother: Elizabeth POYNTZ
6. Elizabeth O'BRIEN m1. Dutton GERARD, Lord Gerard m2. Philip WENMAN, Viscount Wenman of Tuam
m. Dutton GERARD, Lord Gerard father: Gilbert GERARD, Lord Gerard mother: Eleanor DUTTON
m. Philip WENMAN, Viscount Wenman of Tuam father: Thomas WENMAN, Viscount Wenman of Tuam mother: Margaret HAMPDEN
9. Anne O'BRIEN m. Henry O'BRIEN, Earl Of Thomond
m. Henry O'BRIEN, Earl Of Thomond father: Barnabas O'BRIEN, Earl Of Thomond mother: Mary FERMOR
10. Penelope O'BRIEN m. Henry MORDAUNT, Earl of Peterborough
m. Henry MORDAUNT, Earl of Peterborough father: John MORDAUNT, Earl of Peterborough mother: Elizabeth HOWARD
11. Henry O'BRIEN, Earl Of Thomond m1. Anne O'BRIEN m2. Sarah RUSSELL
m. Anne O'BRIEN father: Henry O'BRIEN, Earl Of Thomond mother: Mary BRERETON
m. Sarah RUSSELL father: Sir Francis RUSSELL mother: Catherine WHEATLEY

4th generation

12. Helen McCARTY m. William BOURKE, Earl of Clanricarde
m. William BOURKE, Earl of Clanricarde father: Sir William De BURGH mother: Joan O'SHAUGNESSY
13. Margaret MacCARTY m. Luke PLUNKETT, Earl of Fingall
m. Luke PLUNKETT, Earl of Fingall father: Christopher PLUNKETT, Earl of Fingall mother: Mabel BARNEWALL
15. Henry O'BRIEN, Lord Ibrackan m. Catherine STUART, Baroness Clifton
m. Catherine STUART, Baroness Clifton father: George STUART, Lord of Aubigny mother: Katherine HOWARD

5th generation

18. Peter PLUNKETT, Earl of Fingall m. Frances HALES
m. Frances HALES father: Sir Edward HALES mother: Anne WOTTON