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Family:
Marriage: Children:
  1. Dermond O'BRIEN, Lord Inchiquin Birth: Abt 1595 Death: 29 Dec 1624

Bibliography
  1. 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:
age 11 at fathers death [Ref: CP VII p51],
parents:
[Ref: CP VII p51]
Sources for death Information
date:
[Ref: CP VII p51],
place:
[Ref: CP VII p51]
Sources with Information about marriage to Mabel NUGENT
date:
first marriage of Mabel [Ref: CP VII p51],
child:
[Ref: CP VII p51]
Research Notes:
4th Lord Inchiquin, of Barony cr 1543 [Ref: CP VII p51]

heir of his father [Ref: CP VII p51]



Pedigree of Murrough O'BRIEN, Lord Inchiquin
                                                                /-----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
                   /-----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
|        |                                                      /-----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
|         \-----Margaret O'BRIEN
|                 |                                             /-----James BUTLER, Earl Of Ormond
|                 |                                    /-----Sir Richard BUTLER
|                 |                                   |         \-----Anne WELLES
|                 |                           /-----Sir Edmund BUTLER
|                 |                          |        |         /-----Gildas O'REILLY
|                 |                          |         \-----Catherine O'REILLY
|                 |                  /-----Sir James BUTLER
|                 |                 |        |                  /-----Teige O'CARROLL
|                 |                 |        |         /-----Melroona O'CARROLL
|                 |                 |        |        |         \-----Joan BUTLER
|                 |                 |         \-----Shile O'CARROLL
|                 |                 |                  \-----Bibiana O'DEMPSEY
|                 |         /-----Sir Piers BUTLER, Earl Of Ormond
|                 |        |        |         /-----Donald Reagh MacMorrogh KAVANAGH
|                 |        |         \-----Sabine KAVANAGH
|                  \-----Ellen BUTLER
|                          |                                    /-----John FITZ GERALD, Earl Of Kildare
|                          |                           /-----John Cam FITZ GERALD
|                          |                          |         \-----Margaret De La HERNE
|                          |                  /-----Thomas FITZ GERALD, Earl Of Kildare
|                          |         /-----Gerald FITZGERALD, K.G., Earl Of Kildare
|                          |        |        |                  /-----Gerald Fitz Morice, Earl Of Desmond
|                          |        |        |         /-----James FITZ GERALD, Earl Of Desmond
|                          |        |        |        |         \-----Alianore Le BOTILLER
|                          |        |         \-----Joan FITZ GERALD
|                          |        |                 |         /-----Ulick Mac RICHARD BURK
|                          |        |                  \-----Mary Mac RICHARD BURK
|                           \-----Margaret FITZGERALD
|                                   |                  /-----Sir Edward FITZEUSTACE
|                                   |         /-----Rowland FITZEUSTACE, Baron Portlester
|                                    \-----Alison FITZEUSTACE
|                                             \-----Jenet BELLEW
Murrough O'BRIEN, Lord Inchiquin
|         /-----Sir Thomas CUSACK
 \-----Margaret CUSACK
         |         /-----John DARCY
          \-----Maud DARCY



Descendants of Murrough O'BRIEN, Lord Inchiquin
1. Murrough O'BRIEN, Lord Inchiquin m. Mabel NUGENT
m. Mabel NUGENT father: Christopher NUGENT, Lord Delvin mother: Mary FITZGERALD

2nd generation

2. Dermond O'BRIEN, Lord Inchiquin m. Ellen FITZGERALD
m. Ellen FITZGERALD father: Sir Edmond Fitz-Edmund FITZGERALD mother: Honora FITZGERALD

3rd generation

3. MURROUGH O'BRIEN, Earl of Inchiquin m. Elizabeth St LEGER
m. Elizabeth St LEGER father: Sir William St LEGER mother: Gertrude De VRIES

4th generation

4. William O'BRIEN, Earl of Inchiquin m1. Margaret BOYLE m2. Elizabeth BRYDGES
m. Margaret BOYLE father: Roger BOYLE, Earl of Orrery mother: Margaret HOWARD
m. Elizabeth BRYDGES father: George BRYDGES, Lord Chandos of Sudeley mother: Susan MONTAGU

5th generation

5. 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