Landed Estates
NUI Galway

Moore (Brees)

Colonel Garrett Moore was granted over 11,500 acres in the barony of Clanmorris, county Mayo as well as the Cloghan estate in county Offaly under the Acts of Settlement. He had one daughter who married Walter Lawrence of Lisreaghan or Lawrencetown, county Galway. He was succeeded by his nephew, Captain John Moore, who married Mary Daly. They had one son, Garrett, and two daughters. Captain John Moore died in 1706 and his widow married Peter Browne of Westport and was mother of John Browne, 1st Earl of Altamont. Garrett Moore succeeded his father but died without issue in 1722 and his two sisters, who had married Sir Henry Lynch 5th baronet of Castle Carra and Michael Moore of Cloonbigny, parish of Taghmaconnell, barony of Athlone, county Roscommon respectively, became his heiresses. The division of the Moore estate was eventually settled in 1744 by a decision of the House of Lords in favour of Sir Henry Lynch, who obtained possession of a moiety of the Moore estate in county Mayo. In 1852 the Moores of Clonebigny advertised for sale in the Encumbered Estates' Court their lands in counties Roscommon, Offaly, Mayo (parishes of Balla and Kilcolman) and Clare amounting to 9456 acres. The maps of the estate of Garret O'Moore may be viewed on line at


Name Townland Civil Parish PLU DED Barony County Map Ref
Brees/Brize Barnagreggaun Mayo Claremorris Mayo 91 Clanmorris Mayo OSI Ref: M289 809
OS Sheet: 91
Discovery map: 31

Archival sources

  • Westport Estate Papers, Collection List 78; National Library of Ireland
  • Encumbered Estates’ Court Rentals (O’Brien), O’Moore, 8 Oct 1852, Vol 18, MRGS 39/008, (microfilm copy in NUIG); National Archives of Ireland
  • Photostat of survey of estate of Garet Moore, 29 maps of South Mayo 1720-1721, with reference to legal action by Sir F. Lynch Blosse in 1837. MS 2707 ; National Library of Ireland
  • Garrett Moore v Sir Henry Lynch and others re estate of John Moore of Brees, who died 1635, includes Moore family pedigree, Mar 1744. House of Lords Appeals, Vol 4a; King's Inn Library
  • Decree of Kirwan family of Dalgan, re inheritance of lands in barony of Clanmorris, includes reference to the Moores, 1842. MS4585; National Library of Ireland
  • Copies of 39 maps of the estate of Garret Moore, surveyed in 1720-1721, associated with a court case between Sir Francis Lynch Blosse v Garret O'Moore, concluded in 1744, includes land in Co Offaly; Mayo County Library

Contemporary printed sources

Modern printed sources