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: Mary O'BRIEN
Sex: F
Birth: 12 Feb 1691/2 in London ^b
Death: 10 Feb 1780 ^d
Burial: Christ Church Cathedral, Dublin ^u

Parents:

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

Mother:

Mary VILLIERS Birth: 6 Death: 17 Apr 1753 in Bath

Family:
Marriage:

Robert FITZGERALD, Earl Of Kildare on 7 Mar 1708/9 at St Andrew's, Dublin .^m1
Robert FITZGERALD, Earl Of Kildare Birth: 4 May 1675 Death: 20 Feb 1743/4 in Carton

Children:

Margaretta FITZGERALD Birth: 2 Jul 1729 Death: 25 Jan 1766 in Naples

Bibliography

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].*].
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:: [Ref: CP VII p245]; first daughter [Ref: CP VII p244],
place:: [Ref: CP VII p245],
parents:: [Ref: CP VII p224, CP VII p244],
father:: [Ref: CP IV p457]

Sources for death Information

date:: [Ref: CP VII p245]

Sources for burial Information

place:: [Ref: CP VII p245]

Sources with Information about marriage to Robert FITZGERALD, Earl Of Kildare

date:: [Ref: CP VII p244],
place:: [Ref: CP VII p244],
child:: [Ref: CP IV p457]

Research Notes:

Pedigree of Mary O'BRIEN
                                                                /-----Murrough O'BRIEN, Prince of Thomond, Earl of Tho
                                                       /-----Dermond O'BRIEN, Lord Inchiquin
                                                      |         \-----Eleanor FITZGERALD
                                              /-----Murrough O'BRIEN, Lord Inchiquin
                                             |        |         /-----Donough O'BRIEN, Earl Of Thomond
                                             |         \-----Margaret O'BRIEN
                                             |                  \-----Ellen BUTLER
                                     /-----Murrough O'BRIEN, Lord Inchiquin
                                    |        |         /-----Sir Thomas CUSACK
                                    |         \-----Margaret CUSACK
                                    |                 |         /-----John DARCY
                                    |                  \-----Maud DARCY
                            /-----Dermond O'BRIEN, Lord Inchiquin
                           |        |                           /-----Christopher NUGENT
                           |        |                  /-----Richard NUGENT, Lord Delvin
                           |        |                 |         \-----Marian St. LAWRENCE
                           |        |         /-----Christopher NUGENT, Lord Delvin
                           |        |        |        |         /-----Jenico PRESTON, Viscount Gormanston
                           |        |        |         \-----Elizabeth PRESTON
                           |        |        |                  \-----Catherine FITZGERALD
                           |         \-----Mabel NUGENT
                           |                 |                  /-----Gerald FITZGERALD, Earl Of Kildare
                           |                 |         /-----Gerald FITZGERALD, Earl Of Kildare
                           |                 |        |         \-----Elizabeth GREY
                           |                  \-----Mary FITZGERALD
                           |                          |         /-----Sir Anthony BROWNE, K.G.
                           |                           \-----Mable BROWNE
                           |                                    \-----Alice GAGE
                   /-----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
/-----William O'BRIEN, Earl of Inchiquin
|        |                           /-----Roger BOYLE
|        |                  /-----Richard BOYLE, Earl of Cork
|        |                 |        |         /-----Robert NAYLOR
|        |                 |         \-----Joan NAYLOR
|        |         /-----Roger BOYLE, Earl of Orrery
|        |        |        |         /-----Sir Geoffrey FENTON
|        |        |         \-----Catherine FENTON
|        |        |                 |         /-----Robert WESTON
|        |        |                  \-----Alice WESTON
|         \-----Margaret BOYLE
|                 |                                             /-----Thomas HOWARD, K.G., Duke Of Norfolk
|                 |                                    /-----Henry HOWARD, K.G., Earl of Surrey
|                 |                                   |         \-----Elizabeth STAFFORD
|                 |                           /-----Thomas HOWARD, Duke Of Norfolk
|                 |                          |        |         /-----John De VERE, K.G., Earl of Oxford
|                 |                          |         \-----Frances VERE
|                 |                          |                  \-----Elizabeth TRUSSELL
|                 |                  /-----Thomas HOWARD, Earl Of Suffolk
|                 |                 |        |                  /-----Geoffrey AUDLEY
|                 |                 |        |         /-----Sir Thomas AUDLEY, K.G., Lord Audley
|                 |                 |         \-----Margaret AUDLEY
|                 |                 |                 |         /-----Thomas GREY, K.G., Marquess of Dorset
|                 |                 |                  \-----Elizabeth GREY
|                 |                 |                           \-----Margaret WOTTON
|                 |         /-----Theophilus HOWARD, Earl Of Suffolk
|                 |        |        |         /-----Sir Henry KNYVETT
|                 |        |         \-----Catherine KNEVET
|                 |        |                 |                  /-----William STUMPE
|                 |        |                 |         /-----Sir James STUMPE
|                 |        |                 |        |         \-----Joyce BERKELEY
|                 |        |                  \-----Elizabeth STUMPE
|                 |        |                          |         /-----Sir Edward BAYNTON
|                 |        |                           \-----Bridget BAYNTON
|                 |        |                                    \-----Elizabeth SULLIARD
|                  \-----Margaret HOWARD
|                          |                  /-----Alexander HOME
|                          |         /-----Sir George HOME, K.G., Earl of Dunbar
|                          |        |        |         /-----George HOME
|                          |        |         \-----Janet HOME
|                           \-----Elizabeth HOME
|                                   |         /-----Sir Alexander GORDON
|                                    \-----Elizabeth GORDON
|                                            |         /-----David BETOUN
|                                             \-----Agnes BETOUN
Mary O'BRIEN
|         /-----Sir Edward VILLIERS
\-----Mary VILLIERS
         |                                                      /-----Sir Thomas HOWARD, K.G., Duke Of Norfolk
         |                                             /-----Thomas HOWARD, K.G., Duke Of Norfolk
         |                                            |         \-----Elizabeth TILNEY
         |                                    /-----Henry HOWARD, K.G., Earl of Surrey
         |                                   |        |         /-----Edward STAFFORD, K.G., Duke Of Buckingham
         |                                   |         \-----Elizabeth STAFFORD
         |                                   |                  \-----Eleanor PERCY
         |                           /-----Thomas HOWARD, Duke Of Norfolk
         |                          |        |                  /-----John De VERE
         |                          |        |         /-----John De VERE, K.G., Earl of Oxford
         |                          |        |        |         \-----Alice COLBROKE
         |                          |         \-----Frances VERE
         |                          |                 |         /-----Edward TRUSSELL
         |                          |                  \-----Elizabeth TRUSSELL
         |                          |                           \-----Margaret DONNE
         |                  /-----Thomas HOWARD, Earl Of Suffolk
         |                 |        |                  /-----Geoffrey AUDLEY
         |                 |        |         /-----Sir Thomas AUDLEY, K.G., Lord Audley
         |                 |         \-----Margaret AUDLEY
         |                 |                 |                  /-----Thomas GREY, K.G., Marquess of Dorset
         |                 |                 |         /-----Thomas GREY, K.G., Marquess of Dorset
         |                 |                 |        |         \-----Cicely BONVILLE, Baroness Harrington And Bonvil
         |                 |                  \-----Elizabeth GREY
         |                 |                          |         /-----Sir Robert WOTTON, K.G.
         |                 |                           \-----Margaret WOTTON
         |                 |                                    \-----Anne BELKNAP
         |         /-----Theophilus HOWARD, Earl Of Suffolk
         |        |        |         /-----Sir Henry KNYVETT
         |        |         \-----Catherine KNEVET
         |        |                 |                  /-----William STUMPE
         |        |                 |         /-----Sir James STUMPE
         |        |                 |        |        |         /-----James BERKELEY
         |        |                 |        |         \-----Joyce BERKELEY
         |        |                  \-----Elizabeth STUMPE
         |        |                          |                  /-----Sir John BAYNTON
         |        |                          |         /-----Sir Edward BAYNTON
         |        |                          |        |         \-----Joan DIGGS
         |        |                           \-----Bridget BAYNTON
         |        |                                   |         /-----Sir John SULYARD
         |        |                                    \-----Elizabeth SULLIARD
         |        |                                             \-----Anne ANDREWS
          \-----Frances HOWARD
                  |                  /-----Alexander HOME
                  |         /-----Sir George HOME, K.G., Earl of Dunbar
                  |        |        |         /-----George HOME
                  |        |         \-----Janet HOME
                   \-----Elizabeth HOME
                           |         /-----Sir Alexander GORDON
                            \-----Elizabeth GORDON
                                    |         /-----David BETOUN
                                     \-----Agnes BETOUN

Descendants of Mary O'BRIEN

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

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

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

2nd generation

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

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

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

3rd generation

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

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

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

4th generation

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

m. Maria WINDSOR father: Other Hickman WINDSOR, Earl of Plymouth mother: Sarah ARCHER

5+ Arthur Wills Blundell Sandys Trumbull W HILL, Marquess Of Downshire m. Caroline Frances STAPLETON-COTTON

5th generation

5. Arthur Wills Blundell Sandys Trumbull W HILL, Marquess Of Downshire m. Caroline Frances STAPLETON-COTTON

m. Caroline Frances STAPLETON-COTTON

6+ Arthur Wills Blundell Trumbull Sandys Ro HILL, Marquess Of Downshire m. Georgiana Elizabeth BALFOUR