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

Person Info

Name: William O'BRIEN, Earl of Inchiquin
Sex: M
Birth: Abt 1640 ^b
Death: Jan 1691/2 in Jamaica ^d
Burial: St Jago de la Vega, Jamaica ^u

Parents:

Father:
MURROUGH O'BRIEN, Earl of Inchiquin Birth: Abt 1614 Death: 14 Nov 1674 in Dublin

Mother:

Elizabeth St LEGER Death: 22 May 1685

Family:
Marriage:

Margaret BOYLE on Abt Dec 1665 .^m1
Margaret BOYLE

Children:

William O'BRIEN, Earl of Inchiquin Birth: Abt 1666 Death: 24 Dec 1719 in Rostellan Castle, co Cork

Marriage:

Elizabeth BRYDGES on After 1683 .^m2
Elizabeth BRYDGES Death: 3 Feb 1717/8 in St Julian's, co Monmouth

Bibliography

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:: abt 1640 [Ref: CP VII p52],
parents:: [Ref: CP VII p52]

Sources for death Information

date:: [Ref: CP VII p53],
place:: [Ref: CP VII p53]

Sources for burial Information

place:: [Ref: CP VII p53]

Sources with Information about marriage to Margaret BOYLE

date:: 1665 abt Dec [Ref: CP VII p53],
child:: [Ref: CP VII p53]

Sources with Information about marriage to Elizabeth BRYDGES

date:: second marriage of both [Ref: CP VII p53]

Research Notes:
2nd Earl of Inchiquin, of Earldom cr 1654 [Ref: CP VII p52]
7th Lord Inchiquin, of Barony cr 1543 [Ref: CP VII p52]

heir of his father [Ref: CP VII p52]

Pedigree of William O'BRIEN, Earl of Inchiquin
                                                                /-----Teige O'BRIEN, Prince Of Thomond
                                                       /-----Turlogh Don O'BRIEN, Prince Of Thomond
                                              /-----Murrough O'BRIEN, Prince of Thomond, Earl of Tho
                                             |        |         /-----John MACNAMARA
                                             |         \-----Raghnailt MACNAMARA
                                     /-----Dermond O'BRIEN, Lord Inchiquin
                                    |        |         /-----Sir Thomas FITZGERALD
                                    |         \-----Eleanor FITZGERALD
                            /-----Murrough O'BRIEN, Lord Inchiquin
                           |        |                           /-----Turlogh Don O'BRIEN, Prince Of Thomond
                           |        |                  /-----Conor O'BRIEN
                           |        |                 |         \-----Raghnailt MACNAMARA
                           |        |         /-----Donough O'BRIEN, Earl Of Thomond
                           |        |        |        |         /-----Ulick De BURGH
                           |        |        |         \-----Annabell De BURGH
                           |         \-----Margaret O'BRIEN
                           |                 |                  /-----Sir James BUTLER
                           |                 |         /-----Sir Piers BUTLER, Earl Of Ormond
                           |                 |        |         \-----Sabine KAVANAGH
                           |                  \-----Ellen BUTLER
                           |                          |         /-----Gerald FITZGERALD, K.G., Earl Of Kildare
                           |                           \-----Margaret FITZGERALD
                           |                                    \-----Alison FITZEUSTACE
                   /-----Murrough O'BRIEN, Lord Inchiquin
                  |        |         /-----Sir Thomas CUSACK
                  |         \-----Margaret CUSACK
                  |                 |         /-----John DARCY
                  |                  \-----Maud DARCY
          /-----Dermond O'BRIEN, Lord Inchiquin
         |        |                                             /-----Christopher NUGENT, Baron Of Delvin
         |        |                                    /-----Richard NUGENT, Lord Delvin
         |        |                                   |         \-----Elizabeth PRESTON
         |        |                           /-----Christopher NUGENT
         |        |                          |        |         /-----Thomas FITZGERALD
         |        |                          |         \-----Isabel FITZGERALD
         |        |                  /-----Richard NUGENT, Lord Delvin
         |        |                 |        |                  /-----Robert St. LAWRENCE, Lord Howth
         |        |                 |        |         /-----Nicholas St. LAWRENCE, Lord Howth
         |        |                 |        |        |         \-----Alice WHITE
         |        |                 |         \-----Marian St. LAWRENCE
         |        |                 |                 |         /-----Christopher PLUNKETT, Lord Killeen
         |        |                 |                  \-----Janet PLUNKETT
         |        |                 |                           \-----Jenet BELLEW
         |        |         /-----Christopher NUGENT, Lord Delvin
         |        |        |        |                           /-----Robert PRESTON, Viscount Gormanston
         |        |        |        |                  /-----William PRESTON, Viscount Gormanston
         |        |        |        |                 |         \-----Janet MOLYNEUX
         |        |        |        |         /-----Jenico PRESTON, Viscount Gormanston
         |        |        |        |        |        |         /-----Sir Robert BURNELL
         |        |        |        |        |         \-----Anne BURNELL
         |        |        |        |        |                  \-----Margaret HOLYWOOD
         |        |        |         \-----Elizabeth PRESTON
         |        |        |                 |                  /-----Gerald FITZGERALD, K.G., Earl Of Kildare
         |        |        |                 |         /-----Gerald FITZGERALD, Earl Of Kildare
         |        |        |                 |        |         \-----Alison FITZEUSTACE
         |        |        |                  \-----Catherine FITZGERALD
         |        |        |                          |         /-----Sir John ZOUCHE
         |        |        |                           \-----Elizabeth ZOUCHE
         |        |        |                                    \-----Elizabeth St JOHN
         |         \-----Mabel NUGENT
         |                 |                                    /-----Thomas FITZ GERALD, Earl Of Kildare
         |                 |                           /-----Gerald FITZGERALD, K.G., Earl Of Kildare
         |                 |                          |         \-----Joan FITZ GERALD
         |                 |                  /-----Gerald FITZGERALD, Earl Of Kildare
         |                 |                 |        |         /-----Rowland FITZEUSTACE, Baron Portlester
         |                 |                 |         \-----Alison FITZEUSTACE
         |                 |                 |                  \-----Jenet BELLEW
         |                 |         /-----Gerald FITZGERALD, Earl Of Kildare
         |                 |        |        |                  /-----Sir John GREY
         |                 |        |        |         /-----Thomas GREY, K.G., Marquess of Dorset
         |                 |        |        |        |         \-----Elizabeth WYDVILLE
         |                 |        |         \-----Elizabeth GREY
         |                 |        |                 |         /-----William BONVILLE, Lord Harrington
         |                 |        |                  \-----Cicely BONVILLE, Baroness Harrington And Bonvil
         |                 |        |                           \-----Katherine NEVILLE
         |                  \-----Mary FITZGERALD
         |                          |                           /-----Sir Thomas BROWNE
         |                          |                  /-----Sir Anthony BROWNE
         |                          |                 |         \-----Eleanor ARUNDEL
         |                          |         /-----Sir Anthony BROWNE, K.G.
         |                          |        |        |         /-----John De NEVILLE, K.G., Marquess of Montagu
         |                          |        |         \-----Lucy NEVILLE
         |                          |        |                  \-----Isabel INGOLDTHORPE
         |                           \-----Mable BROWNE
         |                                   |                  /-----William GAGE
         |                                   |         /-----Sir John GAGE, K.G.
         |                                   |        |         \-----Agnes BOLNEY
         |                                    \-----Alice GAGE
         |                                            |         /-----Sir Richard GUILFORD, K.G.
         |                                             \-----Philippe GUILFORD
         |                                                      \-----Anne PIMPE
/-----MURROUGH O'BRIEN, Earl of Inchiquin
|        |         /-----Sir Edmond Fitz-Edmund FITZGERALD
|         \-----Ellen FITZGERALD
|                 |         /-----James FITZGERALD
|                  \-----Honora FITZGERALD
William O'BRIEN, Earl of Inchiquin
|         /-----Sir William St LEGER
\-----Elizabeth St LEGER
          \-----Gertrude De VRIES

Descendants of William O'BRIEN, Earl of Inchiquin

1. William O'BRIEN, Earl of Inchiquin m1. Margaret BOYLE m2. Elizabeth BRYDGES

m. Margaret BOYLE father: Roger BOYLE, Earl of Orrery mother: Margaret HOWARD

2+ William O'BRIEN, Earl of Inchiquin m1. Mary Van Den BEMPDE m2. Margaret O'BRIEN m3. Mary VILLIERS

m. Elizabeth BRYDGES father: George BRYDGES, Lord Chandos of Sudeley mother: Susan MONTAGU

2nd generation

2. William O'BRIEN, Earl of Inchiquin m1. Mary Van Den BEMPDE m2. Margaret O'BRIEN m3. Mary VILLIERS

m. Mary Van Den BEMPDE father: Abraham Van Den BEMPDE

m. Margaret O'BRIEN father: James O'BRIEN

m. Mary VILLIERS father: Sir Edward VILLIERS mother: Frances HOWARD

3+ Mary O'BRIEN m. Robert FITZGERALD, Earl Of Kildare

3rd generation

3. Mary O'BRIEN m. Robert FITZGERALD, Earl Of Kildare

m. Robert FITZGERALD, Earl Of Kildare father: Robert FITZGERALD mother: Mary CLOTWORTHY

4+ Margaretta FITZGERALD m. Wills HILL, Marquess Of Downshire

4th generation

4. Margaretta FITZGERALD m. Wills HILL, Marquess Of Downshire

m. Wills HILL, Marquess Of Downshire father: Trevor HILL, Viscount Hillsborough mother: Mary ROWE

5+ Arthur HILL, Marquess Of Downshire m. Mary SANDYS

5th generation

5. Arthur HILL, Marquess Of Downshire m. Mary SANDYS

m. Mary SANDYS father: Martin SANDYS mother: Mary TRUMBULL

6+ Arthur Blundell Sandys Trumbull HILL, Marquess Of Downshire m. Maria WINDSOR