Landed Estates
NUI Galway

O'Brien (Ennistymon)

This branch of the O'Briens were descended from Sir Donnagh O'Brien of Duagh of Elizabethan times. In 1682 Donnogh O'Bryen of Dough, county Clare, was granted lands in the baronies of Corcomroe, Burren and Inchiquin, amounting to over 5,000 acres. Edward O'Brien of Ennistymon, county Clare, married Susanna daughter of Henry O'Brien of Balliclogh and had a son Christopher who had 4 sons all of whom died without heirs. Christopher's sister Anne married the Honourable Matthias Finucane and their daughter Susanna married William Macnamara of Doolin. The Ballycorick estate, 2081 acres in the barony of Island, of Christopher O'Brien the elder , Christopher O'Brien the younger, and their trustees Thomas Blair Hutheaite and Patrick David Jeffers, was offered for sale in July 1853.


Name Townland Civil Parish PLU DED Barony County Map Ref
Ennistimon House Castlequarter Kilmanaheen Ennistimon Ennistimon 48 Corcomroe Clare OSI Ref: R127 885
OS Sheet: 15
Discovery map: 57

Archival sources

  • Large collection of solicitors' records including documents re the O'Brien family of Ennistimon, 18th-19th centuries. E.J.French solicitor's collection, Small Accessions Index 8; National Archives of Ireland
  • Genealogy of the family of O’Brien of Ennistymon House in Irish & English, compiled by Michael O’Reilly, c 1800. GO MS 559; National Library of Ireland
  • Inchiquin Papers, includes records re the O'Briens of Dough & Ennistymon, 16th-18th centuries. Collection List 143. MSS 45,684/6-7 & MSS 45,693-45,698; National Library of Ireland
  • Encumbered Estates’ Court Rentals (Burke), O'Brien, 15 July 1853, Vol 35 ; National Library of Ireland
  • Twigge Collections, Add. MSS 39259-39270, historical, topographical and genealogical collections relating to Clan Chuiléin "Macnamara's Country" in east Clare. Microfilm copies in Local Studies Centre, Clare County Library, Ennis.; British Library

Contemporary printed sources

Modern printed sources