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: Matthew O'NEILL
Sex: M
Death: 1558 ^d

Parents:

Father:
Con Baccach O'NEILL, Earl of Tyrone Birth: Abt 1484 Death: Before 16 Jul 1559

Mother:

Alison KELLY

Family:
Marriage:

Joan MAGUIRE .^m1
Joan MAGUIRE Death: 22 Jun 1600 in Magheracross, co Fermanagh

Children:

Brien O'NEILL, Earl of Tyrone Death: 12 Apr 1562
Hugh O'NEILL, Earl of Tyrone Birth: 1550 Death: 20 Jul 1616 in Rome

Bibliography

Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 12-2, Tracton-Zz. London: St Catherine Press, 1959. 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/2 [Ap][p0-9].*].

Sources for birth and parent Information

father:: illeg son [Ref: CP XII/2 p131]

Sources for death Information

date:: [Ref: CP XII/2 p132]

Sources with Information about marriage to Joan MAGUIRE

child:: [Ref: CP XII/2 p132, CP XII/2 p133]

Research Notes:
Baron of Dungannon [Ref: CP XII/2 p131]

Pedigree of Matthew O'NEILL
          /-----Con O'NEILL
/-----Con Baccach O'NEILL, Earl of Tyrone
|        |                                                      /-----John FITZ THOMAS FITZ GERALD, Earl Of Kildare
|        |                                             /-----Thomas FITZ JOHN FITZ GERALD, Earl Of Kildare
|        |                                            |         \-----Blanche ROCHE
|        |                                    /-----Maurice FITZ THOMAS FITZ GERALD, Earl Of Kildare
|        |                                   |        |         /-----Richard De BURGH, Earl Of Ulster
|        |                                   |         \-----Joan De BURGH
|        |                                   |                  \-----Margaret Of Guines
|        |                           /-----John FITZ GERALD, Earl Of Kildare
|        |                          |        |                  /-----Robert BURGHERSH, Lord Burghersh
|        |                          |        |         /-----Sir Bartholomew De BURGHERSH, Lord Burghersh
|        |                          |        |        |         \-----Maud De BADLESMERE
|        |                          |         \-----Elizabeth De BURGHERSH
|        |                          |                 |         /-----Sir Theobald De VERDUN, Lord Verdun
|        |                          |                  \-----Elizabeth De VERDUN
|        |                          |                           \-----Maud De MORTIMER
|        |                  /-----John Cam FITZ GERALD
|        |                 |         \-----Margaret De La HERNE
|        |         /-----Thomas FITZ GERALD, Earl Of Kildare
|         \-----Eleanor FITZ GERALD
|                 |                                             /-----Morice FITZ JOHN
|                 |                                    /-----Thomas FITZ MORICE
|                 |                                   |         \-----Maud De BARRY
|                 |                           /-----Morice FITZ THOMAS, Earl Of Desmond
|                 |                          |        |         /-----Sir Thomas De BERKELEY, Lord Berkeley
|                 |                          |         \-----Margaret BERKELEY
|                 |                          |                  \-----Joan De FERRERS
|                 |                  /-----Gerald Fitz Morice, Earl Of Desmond
|                 |                 |        |                  /-----Maurice FITZ THOMAS, Lord Kerry
|                 |                 |        |         /-----Nicholas FITZ MAURICE, Lord Kerry
|                 |                 |        |        |         \-----Ellen FITZ WILLIAM
|                 |                 |         \-----Aveline Fitz Nicholas
|                 |                 |                 |         /-----Connor O'BRIEN, Prince Of Thomond
|                 |                 |                  \-----Slany O'BRIEN
|                 |         /-----James FITZ GERALD, Earl Of Desmond
|                 |        |        |                           /-----Edmund Le BOTELER
|                 |        |        |                  /-----James BUTLER, Earl Of Ormond
|                 |        |        |                 |         \-----Joan FITZ JOHN
|                 |        |        |         /-----James BUTLER, Earl Of Ormond
|                 |        |        |        |        |         /-----Humphrey VIII De BOHUN, Earl Of Hereford And Essex
|                 |        |        |        |         \-----Eleanor De BOHUN
|                 |        |        |        |                  \-----Elizabeth PLANTAGENET
|                 |        |         \-----Alianore Le BOTILLER
|                 |        |                 |                  /-----Sir Roger DARCY
|                 |        |                 |         /-----Sir John DARCY, Lord Darcy
|                 |        |                 |        |         \-----Isabel D'ATON
|                 |        |                  \-----Elizabeth DARCY
|                 |        |                          |         /-----Richard De BURGH, Earl Of Ulster
|                 |        |                           \-----Joan De BURGH
|                 |        |                                    \-----Margaret Of Guines
|                  \-----Joan FITZ GERALD
|                          |         /-----Ulick Mac RICHARD BURK
|                           \-----Mary Mac RICHARD BURK
Matthew O'NEILL
\-----Alison KELLY

Descendants of Matthew O'NEILL

1. Matthew O'NEILL m. Joan MAGUIRE

m. Joan MAGUIRE father: Constantine MAGUIRE

2 Brien O'NEILL, Earl of Tyrone

3+ Hugh O'NEILL, Earl of Tyrone m. Joanna O'DONNELL

2nd generation

3. Hugh O'NEILL, Earl of Tyrone m. Joanna O'DONNELL

m. Joanna O'DONNELL father: Sir Hugh O'DONNELL

4+ Alice O'NEILL m. Randal MacSorley MacDONNELL, Earl of Antrim

3rd generation

4. Alice O'NEILL m. Randal MacSorley MacDONNELL, Earl of Antrim

m. Randal MacSorley MacDONNELL, Earl of Antrim father: Sorley Buoy MACDONNEL mother: Mary O'NEILL

5+ Mary MacDONNELL m1. Lucas DILLON, Viscount Dillon m2. Oliver PLUNKETT, Lord Louth

6+ Ann MACDONNELL m1. Christopher NUGENT m2. William FLEMING, Lord Slane

7 Randal MACDONNELL, Marquess of Antrim m1. Katherine MANNERS m2. Rose ONEILL; Katherine MANNERS father: Francis MANNERS, Earl Of Rutland mother: Frances KNYVETT

8 Alexander MACDONNEL, Earl of Antrim

4th generation

5. Mary MacDONNELL m1. Lucas DILLON, Viscount Dillon m2. Oliver PLUNKETT, Lord Louth

m. Lucas DILLON, Viscount Dillon father: Sir Christopher DILLON mother: Jane DILLON

9 Theobald DILLON, Viscount Dillon

m. Oliver PLUNKETT, Lord Louth father: Matthew PLUNKETT, Lord Louth mother: Mary FITZWILLIAM

6. Ann MACDONNELL m1. Christopher NUGENT m2. William FLEMING, Lord Slane

m. Christopher NUGENT father: Richard NUGENT, Earl of Westmeath mother: Jane PLUNKETT

10+ Richard NUGENT, Earl of Westmeath m. Mary NUGENT

m. William FLEMING, Lord Slane father: Christopher FLEMING, Lord Slane mother: Elinor BARNEWALL

5th generation

10. Richard NUGENT, Earl of Westmeath m. Mary NUGENT

m. Mary NUGENT father: Sir Thomas NUGENT mother: Alison BARNEWALL

11 Anne NUGENT m1. Lucas DILLON, Viscount Dillon m2. Sir William TALBOT; Lucas DILLON, Viscount Dillon father: Theobald DILLON mother: Sarah BOURKE