Unofficial guide. Not the National Monuments Service, the OPW, Fáilte Ireland or the landowner. Disclaimer
At a glance
- TypeCastle - tower house
- Date or period mentioned17th century
What to look for
- Spiral stair
- Vaulted floor
- Fireplace
- Bartizan
- Corbels
Picked out from the Archaeological Survey description below.
Can you visit?
- No source says it is open to the public.Most monuments in Ireland stand on private farmland.
- Ask the landowner before crossing fields, close gates, leave the stones as you find them.Visiting responsibly
History and description
The castle of Caladh an Treoigh [Castletroy] stands on the S bank of the River Shannon and was described by Westropp (1906-7, 86) as following; '1197 H. Troy was first provost of Limerick; the family is often named.
Full archaeological record 437 words
The castle of Caladh an Treoigh [Castletroy] stands on the S bank of the River Shannon and was described by Westropp (1906-7, 86) as following; '1197 H. Troy was first provost of Limerick; the family is often named. T. Troy, bailiff of Limerick, witnessed Edm. Wyndebald's will, 1361 (Arthur MSS., Len. 62). 1583 W. Bourke held Vill of Castlellane Trylane, C[astle]. of Callatroo (Des. R., 37, Peyton 257). 1610 Held by Mac Keough of Clonkeen, and 1655 the ruined C[astle], eel weir, &c, of Callahintroy, by Lord Brittas (C.S. xxix., p. 8). 1666 Granted to Duke of York. 1688 Shown as standing in the Shannon (Trustees' Map, 22). 1703 Sold to Hollow Blades Company'. The 1654-56 Civil Survey of Limerick recorded that in 1640 Theobald Lord Baron of Brittas was the proprietor in 'CallaghItroy' of a 'ruined castle an orchard & an Eele weare upon it' (Simington 1938, 465). The castle standing on the S bank of the Rver Shannon is depicted on the late 17th century map Hibernia Delineatio.
Castle described in 1840 as following; 'In the townland of Castle-Troy on the southern bank of the Shannon there is a castle which gave name to the townland. Its east and north sides are in tolerable preservation, but the other two are nearly destroyed, only ten feet [3m] of the west and six feet [1.8m] of the south wall remaining. It measures on the inside thirty one feet six inches [9.6m] by twenty one feet two inches [6.45m], and the walls are seven feet six inches thick [2.3m] and the sides, which are perfect, about seventy feet [21.3m] in height, and contain windows for five floors (stories)' (OSL Kilmurry parish).
Castle remains described by Salter (2004, 78) as following; 'The 18m high east end of this 10.4m wide tower of the MacKeoughs of Glenkeen [Clonkeen] is built out as a prow containing the spiral staircase with a tier of sizeable vaulted rooms behind it, whilst other passages and small rooms lay over the SE facing entrance doorway. The result is a very rare five-sided building with a greatest length of 16.5m. The SE corner has an angle-loop at second storey level and corbels for a bartizan containing a chamber at fourth storey level. The main part of the tower further west contained rooms about 6m square, the lowest level being vaulted and the second level having a fireplace on the north, but this part is much ruined by the loss of the SW corner and most of the south wall. On the NW corner this part also had a room in a bartizan at fourth storey level'.
Archaeological Survey of Ireland, National Monuments Service (CC BY 4.0) · Compiled by Caimin O'Brien · Updated 10 January 2020. It describes the site as it was when surveyed.
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Around Castle Troy
Other heritage nearby
- Mary Magdalene's WellHoly well · 2.9 km
- St Munchin's ChurchAncient church · 5.1 km
- Clonkeen ChurchAncient church · 7.2 km
- Kilrush ChurchAncient church · 7.3 km
- Mungret ChurchesAncient church · 9.6 km
- Mungret AbbeyAncient church · 9.7 km
Recorded within 5 km
- 28 ringfortsArchaeological Survey of Ireland
- 14 castlesArchaeological Survey of Ireland
- 10 ancient churchesArchaeological Survey of Ireland
- 7 holy wellsArchaeological Survey of Ireland
- 4 abbeys & friariesArchaeological Survey of Ireland
- 3 standing stonesArchaeological Survey of Ireland
Walks and trails
- Lough Derg WayWalking Trail · 68.3 km · nearest point 1.6 km
- O'Briensbridge - Old Barge LoopWalking Trail · 11.6 km · nearest point 5.1 km
- O'Briensbridge - Errinagh BridgeWalking Trail · 7.5 km · nearest point 6.3 km
Outdoors, towns and places to stay
- GlenstalForests · 13 km
- Cratloe WoodForests · 14 km
- BallycuggeranBeaches · 19 km · Excellent Quality (2025)
- LimerickWalled towns · 4.8 km
- CaherconlishWalled towns · 11 km
Other attractions nearby
- Bourn Vincent GalleryAttraction · 1.6 km
- Treaty Walking ToursWalking · 4.9 km
- Saint Mary's CathedralHistoric Houses and Castle · 5.0 km
- Bishops' Palace Limerick Civic TrustHistoric Houses and Castle · 5.1 km
What's on nearby
- Mozart Illuminated2026-11-20 · 1.6 km
- Romeo & Juliet, Ballet Ireland2026-11-26 · 6.7 km
- Christmas Magic2026-12-16 · 5.9 km
Excavations nearby
- 01E0056 (ext.) Newtown B, County LimerickRoad-scheme excavation report (TII) · 2.4 km
- 01E0214 Newtown, County LimerickRoad-scheme excavation report (TII) · 2.4 km


