Obrien Inchiquin Paternal Family Tree
Dermod McMurrough O'Brien 5th Baron Inchiquin
Baron Inchiquin in County Clare
Born Oct 1594
Died 29 Dec 1624 (30)
Father: Dermod McMurrough O'Brien 5th Baron Inchiquin
Murdough O'Brien 1st Earl Inchiquin
Born 1614
Before 1636 m Elizabeth St Leger Countess Inchiquin x 2
Died 09 Sep 1674 (60)
13 x Great Grand Son of King Edward "Longshanks" I of England
Father: Murdough O'Brien 1st Earl Inchiquin
Mother: Elizabeth St Leger Countess Inchiquin
William O'Brien 2nd Earl Inchiquin
Born 1640
Married Margaret Boyle Countess Inchiquin x 1
Died 16 Jan 1692 (52)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 2nd Earl Inchiquin
Mother: Margaret Boyle Countess Inchiquin
William O'Brien 3rd Earl Inchiquin
Born 1662
Apr 1691 m Mary Villiers Countess Inchiquin x 5
First Cousin Once Removed
Died 24 Dec 1719 (57)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 3rd Earl Inchiquin
Mother: Mary Villiers Countess Inchiquin
Coefficient of Inbreeding: 3.13%
Donal O'Brien
Born 1689
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 3rd Earl Inchiquin
Mother: Mary Villiers Countess Inchiquin
Coefficient of Inbreeding: 3.13%
William O'Brien 4th Earl Inchiquin
Born 1700
29 Mar 1720 m Anne Hamilton 2nd Countess Orkney and Inchiquin x 5
First Cousin
Died 18 Jul 1777 (77)
11 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 4th Earl Inchiquin
Mother: Anne Hamilton 2nd Countess Orkney and Inchiquin
Coefficient of Inbreeding: 7.13%
Mary O'Brien 3rd Countess Orkney and Inchquin
Countess Orkney, Countess Inchiquin
Born 1721
1753 m Murrough O'Brien 1st Marquess Thomond x 1
First Cousin
Died 10 May 1790 (69)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 4th Earl Inchiquin
Mother: Anne Hamilton 2nd Countess Orkney and Inchiquin
Coefficient of Inbreeding: 7.13%
William O'Brien
Born 1725
Died 1727 (2)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 4th Earl Inchiquin
Mother: Anne Hamilton 2nd Countess Orkney and Inchiquin
Coefficient of Inbreeding: 7.13%
George O'Brien
Born 1727
Died 1728 (1)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 4th Earl Inchiquin
Mother: Anne Hamilton 2nd Countess Orkney and Inchiquin
Coefficient of Inbreeding: 7.13%
Murrough O'Brien
Born 1731
Died 1741 (10)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 4th Earl Inchiquin
Mother: Anne Hamilton 2nd Countess Orkney and Inchiquin
Coefficient of Inbreeding: 7.13%
Augustus Obrien
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 3rd Earl Inchiquin
Mother: Mary Villiers Countess Inchiquin
Coefficient of Inbreeding: 3.13%
James O'Brien
Born 1701
Died 18 Dec 1771 (70)
12 x Great Grand Daughter of King Edward III of England
Anne O'Brien
Born 1724
1744 m Archbishop Michael Cox
Died in childbirth 19 Jan 1745 (21)
12 x Great Grand Son of King Edward III of England
Murrough O'Brien 1st Marquess Thomond
Born 1726
1753 m Mary O'Brien 3rd Countess Orkney and Inchquin x 1
First Cousin
25 Jul 1792 m Mary Palmer Marchioness Thomond
Died 10 Feb 1808 (82)
12 x Great Grand Daughter of King Edward III of England
Father: Murrough O'Brien 1st Marquess Thomond
Mother: Mary O'Brien 3rd Countess Orkney and Inchquin
Coefficient of Inbreeding: 8.42%
Mary O'Brien 4th Countess Orkney
Born 04 Sep 1755
1777 m Thomas Fitzmaurice Earl Orkney x 1
Died 30 Dec 1831 (76)
12 x Great Grand Son of King Edward III of England
John O'Brien
Born 1728
Died 1788 (60)
12 x Great Grand Son of King Edward III of England
Edward Dominic O'Brien
Born 1735
Died 01 Mar 1801 (66)
13 x Great Grand Son of King Edward III of England
Father: Edward Dominic O'Brien
Murrough O'Brien
Born 1756
Died 10 Feb 1808 (52)
13 x Great Grand Daughter of King Edward III of England
Father: Edward Dominic O'Brien
Mary O'Brien
Born 1759
Married Richard Eyre Cox
After 1783 m William Saurin
Died 23 Jan 1840 (81)
13 x Great Grand Son of King Edward III of England
Father: Edward Dominic O'Brien
William O'Brien 2nd Marquess Thomond
Born 1765
16 Sep 1799 m Rebecca Trotter Marchioness Thomond x 4
Died 21 Aug 1846 (81)
14 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 2nd Marquess Thomond
Mother: Rebecca Trotter Marchioness Thomond
Susan Maria O'Brien
Married George Frederick Hotham x 2
Died 25 Mar 1857
14 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 2nd Marquess Thomond
Mother: Rebecca Trotter Marchioness Thomond
Sarah Obrien
Married William Stanhope Taylor
14 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 2nd Marquess Thomond
Mother: Rebecca Trotter Marchioness Thomond
Mary O'Brien Countess Bantry
11 Oct 1836 m Richard White 2nd Earl Bantry
14 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 2nd Marquess Thomond
Mother: Rebecca Trotter Marchioness Thomond
Elizabeth Obrien
Married George Stucley Bucke
13 x Great Grand Son of King Edward III of England
Father: Edward Dominic O'Brien
James O'Brien 3rd Marquess Thomond
Born 1769
Died 03 Jul 1855 (86)
13 x Great Grand Son of King Edward III of England
Father: Edward Dominic O'Brien
John O'Brien
Born 1770
Died 1833 (63)
13 x Great Grand Daughter of King Edward III of England
Father: Edward Dominic O'Brien
Harriet O'Brien
Born 1775
17 Apr 1800 m Joseph Wallis Hoare 3rd Baronet x 1
Died 01 May 1851 (76)
13 x Great Grand Son of King Edward III of England
Father: Edward Dominic O'Brien
Edward O'Brien
Born 1780
Married Gertrude Grace Methuen x 1
Married Elizabeth Susan Somerset x 1
Married Diana Hotham
Died 09 Mar 1824 (44)
14 x Great Grand Daughter of King Edward III of England
Mother: Gertrude Grace Methuen
Daughters x 2 Obrien
12 x Great Grand Daughter of King Edward III of England
Henrietta O'Brien
Born 1737
Died 17 Nov 1797 (60)
11 x Great Grand Son of King Edward III of England
Father: William O'Brien 3rd Earl Inchiquin
Mother: Mary Villiers Countess Inchiquin
Coefficient of Inbreeding: 3.13%
Charles Obrien
11 x Great Grand Daughter of King Edward III of England
Father: William O'Brien 3rd Earl Inchiquin
Mother: Mary Villiers Countess Inchiquin
Coefficient of Inbreeding: 3.13%
Mary O'Brien Countess Kildare
07 Mar 1709 m Robert Fitzgerald 19th Earl of Kildare x 3
Second Cousin Once Removed
Died 1730
13 x Great Grand Daughter of King Edward "Longshanks" I of England
Father: Murdough O'Brien 1st Earl Inchiquin
Mother: Elizabeth St Leger Countess Inchiquin
Elizabeth O'Brien
In or before 1665 m Richard Southwell of Castle Matrix x 1
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