Mainistir na Tríonóide | |
 Arms of the Order of Canons Regular of Prémontré | |
  Location within Ireland | |
| Monastery information | |
|---|---|
| Other names | Lough Key Abbey |
| Order | Order of Canons Regular of Prémontré (Premonstratensians) |
| Established | 1215 |
| Disestablished | 1608 |
| Mother house | Prémontré Abbey, Picardy |
| Diocese | Elphin |
| People | |
| Founder(s) | Clarus Mag Máilin |
| Architecture | |
| Status | inactive |
| Style | Norman |
| Site | |
| Location | Trinity Island, Lough Key, County Roscommon |
| Coordinates | 53°59′21″N 8°15′17″W / 53.989217°N 8.254697°W |
| Public access | yes |
| Official name | Trinity Abbey (Trinity Island) |
| Reference no. | 556 |
Holy Trinity Abbey is a former medieval Premonstratensian priory and National Monument located in Lough Key, Ireland.[1][2]
- ^ Archaeological excavations at Holy Trinity Abbey, Lough Key, Co. Roscommon. Royal Irish Academy. 2005. OL 22636278M.
- ^ Clyne, Miriam (1 January 2005). "Archaeological Excavations at Holy Trinity Abbey Lough Key, Co. Roscommon". Proceedings of the Royal Irish Academy, Section C. 105C (2): 23–98. JSTOR 25506230.