1147 in Ireland

← 1146 1145 1144 1143 1142 1147 in Ireland → 1148 1149 1150 1151 1152
Centuries:	11th 12th 13th 14th
Decades:	1120s 1130s 1140s 1150s 1160s
See also:	Other events of 1147 List of years in Ireland

Events from the year 1147 in Ireland.

Incumbents

• High King: Toirdelbach Ua Conchobair

Events

• Bective Abbey is formed ^[1] by Murchad O’Maeil-Sheachlainn as a daughter house of Mellifont Abbey.
• The community at St. Mary's Abbey (Dublin) (originally Savigniac) joined the Cistercian order.
• Antrim Round Tower was burned, and surrounding buildings were later removed. ^[2]

Deaths

• Muireadhach Ua Flannagain, a distinguished priest ^[3]

References

1. "Hidden Ireland: Mystery island, ruined fortress and Braveheart daydreams". journal.ie. The Journal. 6 July 2013. Retrieved 23 March 2017.
2. Travelextra (31 December 2025). "ARCHAEOLOGY in Ireland's county ANTRIM". Eoghan Corry's TRAVEL Extra. Retrieved 8 January 2026.
3. "Part 25 of Annals of the Four Masters". celt.ucc.ie. Retrieved 8 January 2026.