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Sir William O'Brien 1666–1719 – Genealogical Records

Birth Date: 1666

Birth Location: Inchiquin, Galway, Ireland

Death Date: 24 Dec 1719

Death Location: Rostellan Castle, Cork, Ireland

Father: William O'Brien

Mother: Margaretha Boyle

Spouse(s): Lady Villiers

Children(s): James O'Brien

The story of Sir William O'Brien began in 1666 in Inchiquin, Galway, Ireland. Sir William O'Brien married Lady Mary Ephelia Countess Of Inchiquin Villiers, and had children including James Clarke O Brien. Sir William O'Brien passed away in 1719 in Rostellan Castle, Cork, Ireland.

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SO

Reliability Score

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Reliability Score:
C
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
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Biography

  • The story of Sir William O'Brien began in 1666 in Inchiquin, Galway, Ireland.
  • Sir William O'Brien married Lady Mary Ephelia Countess Of Inchiquin Villiers, and had children including James Clarke O Brien.
  • Sir William O'Brien passed away in 1719 in Rostellan Castle, Cork, Ireland.

Immediate Family

Parents

William O'Brien
1638–1692
Birth Location: Burren, 5313, Ireland
WO
Margaretha Boyle
1645–1683
Birth Location: Burren, Mayo, Ireland
MB

Spouses(s)

Lady Villiers
1657–1753
Birth Location: Richmond upon Thames, Surrey, England
LV

Children(s)

James O'Brien
1695–1771
Birth Location: Inse Ua Coinn, Cora Finne, Clare, Ireland
JO

Sir O'Brien's Ancestors

Self
Sir O'Brien
1666–1719
Birth Place: Inchiquin, Galway, Ireland
Parents
William O'Brien
1638–1692
Burren, 5313, Ireland
Margaretha Boyle
1645–1683
Burren, Mayo, Ireland
Grandparents
Roger Boyle
1621–
Ireland
Margaret Howard
1622–1689
Audley End, Saffron Walden, Essex, England
Great-Grandparents
Richard Cork
1566–1643
Catherine Fenton
1565–
2nd-Great-Grandparents
Sir Fenton
1539–1608
Alice Weston\Fenton\Galo\Brady
1541–1631

Sir O'Brien's Descendants

1.
SO
Sir (William) O'Brien (1666–24 Dec 1719) m. Lady (Mary Ephelia (Countess of Inchiquin)) Villiers (1657–17 Apr 1753)
  1. 1. James (Clarke) O'Brien 1695–1771 m. Mary (Jephson) O'brien 1710–
    1. 1. Margaret O'brien 1758–1822 m. William ("Thomas" G) Cantwell 1750–1829
      1. 1. Mary (Polly) Cantwell 1793–1838 m. JAMES OSBORN 1795–
        1. 1. Rachel Osborn 1822–1874 m. John Allison 1822–1909

Sir O'Brien's Timeline

2 Records

1666
1666
Birth of Sir William O'Brien in Inchiquin, Galway, Ireland
Inchiquin, Galway, Ireland
1719
24 Dec 1719
Age 53
Death of Sir William O'Brien in Rostellan Castle, Cork, Ireland
Rostellan Castle, Cork, Ireland

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 1666
    Event Place: Inchiquin, Galway, Ireland

    Genealogy Event 2
    Event Type: Death
    Event Date: 24 Dec 1719
    Event Place: Rostellan Castle, Cork, Ireland
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