Beaumaris Castle
E53834
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."
All labels observed (2)
| Label | Occurrences |
|---|---|
| Beaumaris Castle canonical | 12 |
| Castles and Town Walls of King Edward in Gwynedd | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T403629 — 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: Beaumaris Castle Context triple: [Edward I of England, constructed, Beaumaris Castle]
-
A.
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.
-
B.
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.
-
C.
Harlech
Harlech is a historic coastal town in northwest Wales, best known for its dramatic medieval castle overlooking Cardigan Bay.
-
D.
Cardiff Castle
Cardiff Castle is a historic medieval and Victorian-era fortress and mansion located in the heart of Cardiff, Wales, known for its Roman origins and ornate Gothic Revival architecture.
-
E.
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.
- 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: Beaumaris Castle Target entity description: 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."
-
A.
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.
-
B.
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.
-
C.
Harlech
Harlech is a historic coastal town in northwest Wales, best known for its dramatic medieval castle overlooking Cardigan Bay.
-
D.
Cardiff Castle
Cardiff Castle is a historic medieval and Victorian-era fortress and mansion located in the heart of Cardiff, Wales, known for its Roman origins and ornate Gothic Revival architecture.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
concentric castle
ⓘ
fortified structure ⓘ medieval castle ⓘ |
| architect | James of St George ⓘ |
| associatedMonarch | Edward I of England ⓘ |
| builtFor | Edward I of England ⓘ |
| condition | ruin ⓘ |
| constructedInCentury | 13th century ⓘ |
| constructionStartDate | 1295 ⓘ |
| constructionStatus | never fully completed ⓘ |
| coordinates | 53.263°N 4.093°W ⓘ |
| country | Wales ⓘ |
| designType | concentric design ⓘ |
| garrisonRole | English royal garrison ⓘ |
| hasDefensiveElement |
arrow loops
ⓘ
murder holes ⓘ portcullises ⓘ |
| hasFeature |
corner towers
ⓘ
gatehouses ⓘ inner curtain wall ⓘ inner ward ⓘ moat ⓘ outer curtain wall ⓘ outer ward ⓘ |
| hasMaterial | stone ⓘ |
| heritageDesignation |
Grade I listed building
ⓘ
UNESCO World Heritage Site ⓘ |
| historicalEra | Late Middle Ages ⓘ |
| inscriptionYearUNESCO | 1986 ⓘ |
| knownFor |
advanced concentric defences
ⓘ
symmetrical design ⓘ |
| languageOfName | English ⓘ |
| locatedInAdministrativeArea |
Anglesey
ⓘ
surface form:
Isle of Anglesey County
|
| locatedOn |
Anglesey
ⓘ
surface form:
Isle of Anglesey
|
| location | Beaumaris ⓘ |
| nearBodyOfWater | Menai Strait ⓘ |
| openToPublic | true ⓘ |
| ownedBy | Cadw ⓘ |
| partOf |
Castles and Town Walls of King Edward in Gwynedd
ⓘ
Grosmont Castle ⓘ
surface form:
Edward I's Iron Ring of castles
|
| purpose |
military fortress
ⓘ
to control North Wales ⓘ |
| region |
Gwynedd
ⓘ
surface form:
Gwynedd (historic)
|
| touristAttraction | yes ⓘ |
| townPlannedWith | Beaumaris (planned town) ⓘ |
| UNESCOSiteId | 374 ⓘ |
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: Beaumaris Castle Description of subject: 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."
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Castles and Town Walls of King Edward in Gwynedd
subject surface form:
Castles and Town Walls of King Edward in Gwynedd