Sir John de Courcy was an Anglo-Norman knight who lived in Ireland from 1176 until his expulsion in 1204. He conquered a considerable territory, endowed religious establishments, built abbeys for both the Benedictines and the Cistercians and built strongholds at Dundrum Castle in County Down and Carrickfergus Castle in County Antrim.
- Occupation
- military personnel
- Position held
- lord
- Citizenship
- Lordship of Ireland
- Born
- 1160
- Died
- 1219
