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Our common ancestors - High Kings of Ireland - Contents


Murrough O'Brien, 1st Earl of Thomond




Inchiquin Castle, on Inchiquin Lough, Co.Clare, on 1887 to 1913 map.
See modern satellite view.


  
Murrough O'Brien, 1st Earl of Thomond, and last King of Thomond (see here and here),
mar Eleanor Fitzgerald [dau of Sir Thomas Fitzgerald, Knight of Glin],
succ his brother as King of Thomond 1540,
in 1543 he surrendered his Irish royalty to Henry VIII and was cr Earl of Thomond and Baron of Inchiquin,
died 7 Nov 1551, bur Ennis Abbey,
had issue:


Dermod O'Brien, 2nd Baron of Inchiquin (see here),
mar pre-1550 to his cousin's dau Margaret O'Brien [descendant of Brian Boru and of Edward I],
died 1557, bur Ennis Abbey,
had issue:


Murrough O'Brien, 3rd Baron of Inchiquin (see here),
said to be born 1550, but see below,
mar Margaret Cusack [dau of Sir Thomas Cusack of Lismullen, Co.Meath, by his wife Maud Darcy, dau of John Darcy],
murdered in 1573 or 1574,
had issue:


Murrough O'Brien, 4th Baron of Inchiquin (see here),
said to be age 11 at father's death (born 1562 or 1563), either this or father's date of birth must be wrong,
mar Mabel Nugent [born post-1575, descendant of Edward III],
his marriage is often confused with his father's marriage, but Mabel Nugent was born after his father's death,
[Complete Peerage] has the correct marriages,

killed in battle, 29 July 1597, buried at Donegal Abbey,
had issue:


Dermod O'Brien, 5th Baron of Inchiquin (see here and here),
born around Oct 1594 (age 2 years 9 months at father's death),
mar in or before 1614 to Ellen Fitzgerald [descendant of Edward I and of Aoife Mac Murrough],
he died 29 Dec 1624, age 30 yrs,
had issue:


  1. Mary O'Brien,
    mar Michael Boyle, Archbishop of Armagh and had issue.
    Ancestors of Duke of Wellington and of Elizabeth II.


  2. Murrough O'Brien, 1st Earl of Inchiquin (see here), born c.1614,
    6th Baron of Inchiquin,
    Royalist leader at Battle of Rathmines 1649,
    cr Earl 1654.


  3. Honora O'Brien,
    mar Anthony Stoughton and had issue.
    Appendix H in [Fuller, Omniana] shows her ancestry.





Murrough O'Brien, 1st Earl of Inchiquin.
From here.



An extract of the lament "The Ruin that befell the Great Families of Erin" (c.1720) by the Gaelic poet Aodhagán Ó Rathaille.
From page 11 of [Dineen and O'Donoghue, 1911].
"And sooth to say, the O'Briens have long since become English."







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