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‘Coosan Castle’

Castle, tower house

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What is recorded here

Site of 16th century O’Brien castle probably a tower house that was visited in 1979 and described as following: ‘Nothing is now visible of any structure or enclosure. The nearby field boundaries are modern field fences’ (SMR file). A dry stone wall forms the W boundary of the field in which the castle was situated. A…

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Site of 16th century O’Brien castle probably a tower house that was visited in 1979 and described as following: ‘Nothing is now visible of any structure or enclosure. The nearby field boundaries are modern field fences’ (SMR file). A dry stone wall forms the W boundary of the field in which the castle was situated. A new school has been built in the adjoining field to the W of the castle site. On the 1837 ed. OS 6-inch map Coosan Castle is depicted as a rectangular building aligned E-W with field boundaries running off the SE and SW angles of the castle. No castle building is depicted at this location on the revised 1876 ed. OS 6-inch map or on the 1910 ed. OS 25-inch map. Coosan Castle was the residence of Donell Reogh O’Brian who died on the 6th of February 1599/1600 (Nicholls 1970, 114). During his lifetime Donell O’Brian along with his younger brother Many O’Brian of Cornamagh helped ‘his said brother to build and make upp a castle’ at Coosan (Nicholls 1970, 114).

From the National Monuments Service (Archaeological Survey of Ireland) record WM029-001

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Photo credits
  • Maker not stated on source page, en.wikipedia.org
  • Gerard Michael Lynch, Wikimedia Commons · CC BY-SA 4.0
  • Maker not stated on source page, commons.wikimedia.org
  • Peter Gerken, Wikimedia Commons · CC BY-SA 2.0
  • National Inventory of Architectural Heritage
  • Pat Byrne, Geograph · Creative Commons Attribution-ShareAlike 2.0
  • Graham Horn, Geograph · CC BY-SA 2.0
  • PatWhelehan, Wikimedia Commons
  • Mike Searle, Wikimedia Commons · CC BY-SA 2.0
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