Aberystwyth Castle
E237323
Aberystwyth Castle is a ruined medieval fortress on the coast of Ceredigion, Wales, notable for its strategic seaside location and historical role in Welsh-English conflicts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Aberystwyth Castle canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T2102540 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Aberystwyth Castle Context triple: [Aberystwyth, hasLandmark, Aberystwyth Castle]
-
A.
Conwy Castle
Conwy Castle is a 13th-century medieval fortress in North Wales, renowned for its imposing walls and towers and its role in Edward I’s conquest of Wales.
-
B.
Caernarfon Castle
Caernarfon Castle is a massive medieval fortress in Caernarfon, Wales, famed for its polygonal towers and role as a symbol of English rule over Wales.
-
C.
Dolwyddelan Castle
Dolwyddelan Castle is a medieval Welsh fortress in Snowdonia, traditionally associated with the native prince Llywelyn the Great and commanding a strategic mountain pass.
-
D.
Beaumaris Castle
Beaumaris Castle is a late 13th-century concentric medieval fortress on the Isle of Anglesey in Wales, renowned for its symmetrical design and status as part of the UNESCO-listed "Castles and Town Walls of King Edward in Gwynedd."
-
E.
Caerphilly Castle
Caerphilly Castle is a large 13th-century medieval fortress in South Wales, renowned for its extensive water defenses and status as one of the biggest castles in Britain.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Aberystwyth Castle Target entity description: Aberystwyth Castle is a ruined medieval fortress on the coast of Ceredigion, Wales, notable for its strategic seaside location and historical role in Welsh-English conflicts.
-
A.
Conwy Castle
Conwy Castle is a 13th-century medieval fortress in North Wales, renowned for its imposing walls and towers and its role in Edward I’s conquest of Wales.
-
B.
Caernarfon Castle
Caernarfon Castle is a massive medieval fortress in Caernarfon, Wales, famed for its polygonal towers and role as a symbol of English rule over Wales.
-
C.
Dolwyddelan Castle
Dolwyddelan Castle is a medieval Welsh fortress in Snowdonia, traditionally associated with the native prince Llywelyn the Great and commanding a strategic mountain pass.
-
D.
Beaumaris Castle
Beaumaris Castle is a late 13th-century concentric medieval fortress on the Isle of Anglesey in Wales, renowned for its symmetrical design and status as part of the UNESCO-listed "Castles and Town Walls of King Edward in Gwynedd."
-
E.
Caerphilly Castle
Caerphilly Castle is a large 13th-century medieval fortress in South Wales, renowned for its extensive water defenses and status as one of the biggest castles in Britain.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fortress
ⓘ
medieval castle ⓘ ruined castle ⓘ |
| architecturalStyle | medieval military architecture ⓘ |
| builder |
Edward I of England
ⓘ
surface form:
King Edward I of England
|
| builtFor | Edward I of England ⓘ |
| capturedBy | Owain Glyndŵr ⓘ |
| capturedInYear | 1404 ⓘ |
| conflict |
Glyndŵr Rising
ⓘ
surface form:
Welsh revolt of Owain Glyndŵr
Welsh–English conflicts ⓘ |
| constructionStartDate |
1277
ⓘ
late 13th century ⓘ |
| country | Wales ⓘ |
| demolishedDate | 1640s ⓘ |
| destroyedDuring | English Civil War ⓘ |
| hasCondition | ruin ⓘ |
| hasFunction |
military stronghold
ⓘ
royal administrative centre ⓘ tourist attraction ⓘ |
| hasNearby |
public park
ⓘ
war memorial ⓘ |
| hasSiteFeature |
curtain walls
ⓘ
gatehouse ruins ⓘ inner ward ⓘ outer ward ⓘ towers ⓘ |
| heritageDesignation | Grade I listed building ⓘ |
| inception | 13th century ⓘ |
| locatedIn |
Aberystwyth
ⓘ
Ceredigion ⓘ |
| locatedInTimeZone |
BST
ⓘ
UTC±00:00 ⓘ |
| locatedNear |
Aberystwyth
ⓘ
surface form:
Aberystwyth town centre
River Rheidol estuary ⓘ |
| locatedOn |
Cardigan Bay
ⓘ
coast of Wales ⓘ |
| managedBy | Ceredigion County Council ⓘ |
| materialUsed | stone ⓘ |
| openToPublic | yes ⓘ |
| ownedBy | Ceredigion County Council ⓘ |
| partOf | Edwardian castle-building programme in Wales ⓘ |
| precededBy | Norman earth-and-timber castle at Aberystwyth ⓘ |
| recapturedBy |
English navy
ⓘ
surface form:
English forces
|
| recapturedInYear | 1408 ⓘ |
| region | West Wales ⓘ |
| touristAttraction | yes ⓘ |
| usedUntil | 17th century ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Aberystwyth Castle Description of subject: Aberystwyth Castle is a ruined medieval fortress on the coast of Ceredigion, Wales, notable for its strategic seaside location and historical role in Welsh-English conflicts.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Old College, Aberystwyth
subject surface form:
Royal Pier, Aberystwyth