Hon James O'Brien, MP

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Capt. Sir James Clarke O'Brien (1695 - 1771)

Birthdate:
Birthplace: Youghal, Cork, Ireland
Death: December 17, 1771 (75-76)
Rostellan Estate, Cork, Ireland
Immediate Family:

Son of William O’Brien, 3rd Earl of Inchiquin and Lady Mary O'Brien
Husband of Lady Mary O'Brien
Father of Murrough O'Brien, 1st Marquess of Thomond; Lieut. Hon. John O'Brien, Esq. of Carlow; Capt. Sir Edward Dominic O'Brien, High Sheriff of Clare; Margaret Cantwell; Lady Henrietta O'Brien, of Dunmore and 2 others
Brother of William O'Brien, 4th Earl of Inchiquin; Lady Mary Elizabeth FitzGerald, Countess of Kildare; Charles O'Brien and Henrietta O'Brien
Half brother of Daniel O'Brien, of Waterford

Occupation: Member of the Irish House of Commons, Collector of Customs for Drogheda and Port of Cork
Managed by: Michael Lawrence Rhodes
Last Updated:

About Hon James O'Brien, MP

Captain James O'Brien was the son of William O'Brien, 3rd Earl of Inchiquin, and his wife, Mary Villiers. He was born in 1701 at Inchiquin, County Clare. Not long after his birth, his family relocated to Charleville, County Cork. He married Mary Jephson, the daughter of the Very Reverend William Jephson, Dean of Kilmore, and Anne Barry.

From 1725 to 1727, O'Brien sat as a Member of the Irish House of Commons for Charleville. In 1727, he was elected to the Irish House of Commons for Youghal. He held this seat until his retirement in 1761. While serving in Parliament, O'Brien and his family lived in Drogheda, where he held the position of Collector of Customs for the Port of Drogheda. He retired to his brother's estate at Rostellan, County Cork. During his residency there, O'Brien served as Collector of Customs for the Port of Cork until 1767. He died at Rostellan Estate in 1771.

O'Brien also served time as Grand Master of the Freemasons of Munster. He was unanimously elected in 1727. In the army, he held the rank of Captain of Foot.

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Hon James O'Brien, MP's Timeline

1695
1695
Youghal, Cork, Ireland
1726
1726
Drogheda, Louth, Ireland
1728
1728
Drogheda, Louth, Ireland
1735
1735
Drogheda, County Louth, Ireland
1754
1754
Maryland, USA, Baltimore, MD, United States
1771
December 17, 1771
Age 76
Rostellan Estate, Cork, Ireland
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