Ballylahan Castle
castle ruins in Ireland

Ballylahan Castle is a tower house and National Monument located in County Mayo, Ireland.
Location
Ballylahan Castle is located 2.3 km (1.4 mi) northeast of Strade, on the south bank of the River Moy.
History
This castle was constructed in 1260 by Jordan de Exeter, Sheriff of Connacht and was the ancient seat of the Mac Siúrtáin (MacJordans).
The castle came under attack in 1316 by the King of Connacht, Fedlim Ó Conchobair and was almost destroyed.
Building
The main entrance was in the east and it was flanked by two circular towers, of which only one remains. The entrance gives access to an irregular hexagonal bawn. There is evidence of buildings particularly against the western wall. The bawn has some good base-batter, particularly at the northwest corner.
Begin with the source’s own compact description: “Ballylahan Castle” is castle ruins in Ireland. The dossier treats that line as a proposition to test through Ballylahan, Castle and castle, not as a finished interpretation.
Why this record matters
The phrase “castle ruins in Ireland” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Jul 21, 2026. The linked authority identifier is Q28155027. Authority coordinates are 53.935, -9.105. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1260 and 1316.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Ballylahan Castle”, its source revision and the description used here.
- Expand the search: follow Ballylahan Castle primary sources, Ballylahan Castle archive and Ballylahan research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Ballylahan Castle”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Ballylahan Castle” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.