Calshot Castle
E406579
Calshot Castle is a small 16th-century coastal artillery fort on England’s south coast, built by Henry VIII to defend the entrance to Southampton Water.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Calshot Castle canonical | 5 |
| Yarmouth Castle | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4007818 — 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: Calshot Castle Context triple: [Calshot Spit, hasStructure, Calshot Castle]
-
A.
Pendennis Castle
Pendennis Castle is a coastal artillery fortress in Cornwall, England, built by Henry VIII to defend the strategically important Fal estuary and Falmouth harbour.
-
B.
Sandown Castle
Sandown Castle was a coastal artillery fort on the Kent coast of England, built by Henry VIII as part of his chain of defenses against invasion.
-
C.
Baynard's Castle
Baynard's Castle was a prominent medieval riverside fortress and later a grand Tudor palace in the City of London, historically associated with powerful nobles and royal events.
-
D.
Oystermouth Castle
Oystermouth Castle is a medieval stone fortress overlooking Swansea Bay in Wales, known for its Norman origins and well-preserved historic ruins.
-
E.
Dunster Castle
Dunster Castle is a historic fortified country house and former medieval stronghold in Dunster, England, renowned for its dramatic hilltop setting and centuries of occupation by the Luttrell family.
- 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: Calshot Castle Target entity description: Calshot Castle is a small 16th-century coastal artillery fort on England’s south coast, built by Henry VIII to defend the entrance to Southampton Water.
-
A.
Pendennis Castle
Pendennis Castle is a coastal artillery fortress in Cornwall, England, built by Henry VIII to defend the strategically important Fal estuary and Falmouth harbour.
-
B.
Sandown Castle
Sandown Castle was a coastal artillery fort on the Kent coast of England, built by Henry VIII as part of his chain of defenses against invasion.
-
C.
Baynard's Castle
Baynard's Castle was a prominent medieval riverside fortress and later a grand Tudor palace in the City of London, historically associated with powerful nobles and royal events.
-
D.
Oystermouth Castle
Oystermouth Castle is a medieval stone fortress overlooking Swansea Bay in Wales, known for its Norman origins and well-preserved historic ruins.
-
E.
Dunster Castle
Dunster Castle is a historic fortified country house and former medieval stronghold in Dunster, England, renowned for its dramatic hilltop setting and centuries of occupation by the Luttrell family.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
DeviceFortress
ⓘ
artillery fort ⓘ coastal fortification ⓘ |
| architecturalStyle | Tudor military architecture ⓘ |
| associatedWith |
RNAS Calshot
ⓘ
surface form:
Calshot RAF seaplane base
|
| builtBy | Henry VIII of England ⓘ |
| builtFor |
coastal artillery defence
ⓘ
defence of Southampton Water ⓘ defence of the Solent ⓘ |
| controlledBy |
Kingdom of England
ⓘ
surface form:
English Crown
Ministry of Defence ⓘ War Office ⓘ |
| country | England ⓘ |
| garrisonedBy |
Royal Regiment of Artillery
ⓘ
surface form:
Royal Artillery
|
| hasConstructionEndDate | 1540 ⓘ |
| hasConstructionStartDate | 1539 ⓘ |
| hasFeature |
central circular tower
ⓘ
curtain wall ⓘ gatehouse ⓘ gun platforms ⓘ moat ⓘ |
| hasFunction |
artillery platform
ⓘ
coastal defence fort ⓘ |
| hasShape | circular keep ⓘ |
| hasViewOf |
Isle of Wight
ⓘ
Solent ⓘ |
| heritageDesignation |
Grade II* listed building
ⓘ
Scheduled Monument ⓘ |
| locatedAtMouthOf | Southampton Water ⓘ |
| locatedIn |
Calshot
ⓘ
Hampshire ⓘ |
| locatedInRegion | South East England ⓘ |
| locatedNear | Southampton Water ⓘ |
| locatedOn | south coast of England ⓘ |
| managedBy | English Heritage ⓘ |
| materialUsed | stone ⓘ |
| nearby |
Calshot Activities Centre
ⓘ
Calshot Spit ⓘ |
| openToPublic | true ⓘ |
| partOf | Device Forts ⓘ |
| usedAs |
accommodation for seaplane base personnel
ⓘ
coastguard station ⓘ signal station ⓘ |
| usedDuring |
World War I
ⓘ
surface form:
First World War
Napoleonic Wars ⓘ World War II ⓘ
surface form:
Second World War
Tudor England ⓘ
surface form:
Tudor period
|
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: Calshot Castle Description of subject: Calshot Castle is a small 16th-century coastal artillery fort on England’s south coast, built by Henry VIII to defend the entrance to Southampton Water.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Yarmouth Castle
this entity surface form:
Yarmouth Castle