Sir Lucius Henry O'Brien, 3rd Baronet PC (Ire) (2 September 1731 – 15 January 1795) was an Irish baronet and politician for 34 years.
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O'Brien was the son of Sir Edward O'Brien, 2nd Baronet and his wife Mary Hickman, inheriting the baronetcy on the death of his father in 1765.
In 1761, he entered the Irish House of Commons as the member for Ennis, sitting until 1768.[1] Subsequently O'Brien successfully ran for Clare, a seat previously held by his father, holding it until 1776.[2] He was then again elected for Ennis, but following the unseating of Hugh Dillon Massy as Member of Parliament for Clare, O'Brien returned to represent that constituency in 1778. In the election of 1783, he became the representative for Tuam. O'Brien was sworn of the Privy Council of Ireland in 1786.[2] He served for the latter constituency until 1790, when he was re-elected for Ennis. He held this seat finally until his death in 1795.[1]
O'Brien married Anne French, the daughter of Robert French, in 1768 and had by her seven children, three sons and four daughters. He was succeeded in the baronetcy as well as in the constituency of Ennis by his oldest son Edward.
| Parliament of Ireland | ||
|---|---|---|
| Preceded by David Bindon Samuel Bindon |
Member of Parliament for Ennis 1761–1768 With: Thomas Burton |
Succeeded by Charles McDonnell Crofton Vandeleur |
| Preceded by Francis Pierpoint Burton Charles MacDonnell |
Member of Parliament for Clare 1768–1776 With: Francis Pierpoint Burton |
Succeeded by Edward FitzGerald Hugh Dillon Massy |
| Preceded by Charles McDonnell Crofton Vandeleur |
Member of Parliament for Ennis 1776–1778 With: William Burton |
Succeeded by William Burton Francis Bernard |
| Preceded by Edward FitzGerald Hugh Dillon Massy |
Member of Parliament for Clare 1778–1783 With: Edward FitzGerald |
Succeeded by Edward FitzGerald Sir Hugh Massy, 1st Bt |
| Preceded by James Cuffe David La Touche |
Member of Parliament for Tuam 1783–1790 With: Robert Day |
Succeeded by Thomas Lighton Jonah Barrington |
| Preceded by Stewart Weldon John Thomas Foster |
Member of Parliament for Ennis 1790–1795 With: William Burton Conyngham |
Succeeded by Sir Edward O'Brien, 4th Bt William Burton Conyngham |
| Peerage of Ireland | ||
| Preceded by Edward O'Brien |
Baronet (of Leaghmenagh) 1765–1795 |
Succeeded by Edward O'Brien |