Builth Castle
E913722
Builth Castle is a ruined medieval fortress in Powys, Wales, originally built by the English crown to secure control over the Welsh borderlands.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Builth Castle canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10729486 — 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: Builth Castle Context triple: [Edwardian castles in Wales, hasPart, Builth Castle]
-
A.
Skenfrith Castle
Skenfrith Castle is a medieval riverside fortress in southeast Wales, notable as one of the “Three Castles” built to control the Monnow Valley near the English border.
-
B.
Dinefwr Castle
Dinefwr Castle is a medieval Welsh fortress in Carmarthenshire, historically associated with the princes of Deheubarth and renowned for its picturesque hilltop ruins overlooking the surrounding countryside.
-
C.
Bodelwyddan Castle
Bodelwyddan Castle is a 19th-century Gothic Revival country house and former historic house museum in North Wales, noted for its distinctive architecture and parkland setting.
-
D.
Castell Gwyn
Castell Gwyn is the Welsh name for White Castle, a medieval stone fortress in Monmouthshire, Wales.
-
E.
Restormel Castle
Restormel Castle is a well-preserved circular medieval fortress in Cornwall, England, notable for its picturesque ruins and commanding views over the River Fowey valley.
- 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: Builth Castle Target entity description: Builth Castle is a ruined medieval fortress in Powys, Wales, originally built by the English crown to secure control over the Welsh borderlands.
-
A.
Skenfrith Castle
Skenfrith Castle is a medieval riverside fortress in southeast Wales, notable as one of the “Three Castles” built to control the Monnow Valley near the English border.
-
B.
Dinefwr Castle
Dinefwr Castle is a medieval Welsh fortress in Carmarthenshire, historically associated with the princes of Deheubarth and renowned for its picturesque hilltop ruins overlooking the surrounding countryside.
-
C.
Bodelwyddan Castle
Bodelwyddan Castle is a 19th-century Gothic Revival country house and former historic house museum in North Wales, noted for its distinctive architecture and parkland setting.
-
D.
Castell Gwyn
Castell Gwyn is the Welsh name for White Castle, a medieval stone fortress in Monmouthshire, Wales.
-
E.
Restormel Castle
Restormel Castle is a well-preserved circular medieval fortress in Cornwall, England, notable for its picturesque ruins and commanding views over the River Fowey valley.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
fortress
ⓘ
medieval castle ⓘ ruined castle ⓘ |
| builtBy |
English crown
NERFINISHED
ⓘ
King Edward I of England NERFINISHED ⓘ |
| category |
Castles in Powys
ⓘ
Ruined castles in Wales ⓘ Scheduled monuments in Powys ⓘ |
| condition | ruin ⓘ |
| controlledBy |
English crown
NERFINISHED
ⓘ
Marcher lords NERFINISHED ⓘ |
| country | Wales ⓘ |
| defensiveType | motte-and-bailey castle ⓘ |
| era | medieval period ⓘ |
| hasFeature |
bailey
ⓘ
ditches ⓘ earthworks ⓘ motte ⓘ ramparts ⓘ |
| hasViewOf |
Builth Wells
NERFINISHED
ⓘ
River Wye valley NERFINISHED ⓘ |
| heritageStatus | scheduled monument ⓘ |
| historicalRegion | Brecknockshire NERFINISHED ⓘ |
| languageOfName | English ⓘ |
| locatedIn |
Builth Wells
NERFINISHED
ⓘ
Powys NERFINISHED ⓘ United Kingdom ⓘ Welsh Marches NERFINISHED ⓘ border region between England and Wales ⓘ historic county of Breconshire NERFINISHED ⓘ |
| locatedOn | promontory above the River Wye ⓘ |
| managedBy | local authorities in Powys ⓘ |
| material |
earth
ⓘ
stone ⓘ |
| near |
Builth Wells town centre
ⓘ
River Wye NERFINISHED ⓘ |
| openToPublic | yes ⓘ |
| partOf | English royal castle network in Wales ⓘ |
| purpose |
to assert English royal authority in Wales
ⓘ
to control the surrounding countryside ⓘ to secure control over the Welsh borderlands ⓘ |
| region | Powys NERFINISHED ⓘ |
| usedDuring |
Middle Ages
ⓘ
Wars between England and Wales ⓘ |
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: Builth Castle Description of subject: Builth Castle is a ruined medieval fortress in Powys, Wales, originally built by the English crown to secure control over the Welsh borderlands.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.