Timothy O'Brien was created a baronet in 1849. He was the son of Timothy O'Brien of county Tipperary and his wife a daughter of Timothy Madden of county Galway. He was Lord Mayor of Dublin in 1844 and 1849. In 1821 he married Catherine Murphy and they had three sons Patrick, Timothy and John. Patrick succeeded his father in 1862 and Sir Patrick O'Brien Baronet of Borris in Ossory, Queen's County (Laois) owned 146 acres in Queen's County and 824 acres in King's County (Offaly) in the 1870s.
No houses were found for this estate
- Pedigree of O'Brien, Barts., of Tinnekilly in Co. Tipperary, Borris in Ossory, Co. Kilkenny, c.1760 -- 1849. Genealogical Office: Ms.113, p.417 ; National Library of Ireland
Contemporary printed sources
- PARLIAMENTARY PAPERS. ''Return of owners of land of one acre and upwards, in the several counties .... in Ireland''. HC 1876, LXXX: 167
- HUSSEY DE BURGH, U. H. ''The Landowners of Ireland. An alphabetical list of the owners of estates of 500 acres or £500 valuation and upwards in Ireland''. Dublin: Hodges, Foster and Figgis, 1878. [available online at www.askaboutireland.ie] : 343