St. George’s Castle
E55471
St. George’s Castle is a historic Portuguese-built fortress in Elmina, Ghana, that became one of the most significant centers of the transatlantic slave trade.
All labels observed (1)
| Label | Occurrences |
|---|---|
| St. George’s Castle canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T443684 — 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: St. George’s Castle Context triple: [Elmina Castle, alsoKnownAs, St. George’s Castle]
-
A.
Winchester Castle
Winchester Castle is a historic medieval royal fortress in Winchester, England, long associated with the English monarchy and government.
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B.
Ahlden Castle
Ahlden Castle is a historic German residence in Lower Saxony, best known as the long-term place of confinement of Sophia Dorothea of Celle, the repudiated wife of King George I of Great Britain.
-
C.
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.
-
D.
Harkness Tower
Harkness Tower is a prominent Gothic-style bell tower and landmark at Yale University, known for its carillon and iconic presence on campus.
-
E.
Shrewsbury Castle
Shrewsbury Castle is a historic red sandstone fortress in Shrewsbury, Shropshire, notable for its Norman origins and its role in the town’s medieval defenses.
- 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: St. George’s Castle Target entity description: St. George’s Castle is a historic Portuguese-built fortress in Elmina, Ghana, that became one of the most significant centers of the transatlantic slave trade.
-
A.
Winchester Castle
Winchester Castle is a historic medieval royal fortress in Winchester, England, long associated with the English monarchy and government.
-
B.
Ahlden Castle
Ahlden Castle is a historic German residence in Lower Saxony, best known as the long-term place of confinement of Sophia Dorothea of Celle, the repudiated wife of King George I of Great Britain.
-
C.
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.
-
D.
Harkness Tower
Harkness Tower is a prominent Gothic-style bell tower and landmark at Yale University, known for its carillon and iconic presence on campus.
-
E.
Shrewsbury Castle
Shrewsbury Castle is a historic red sandstone fortress in Shrewsbury, Shropshire, notable for its Norman origins and its role in the town’s medieval defenses.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
castle
ⓘ
fortress ⓘ historic site ⓘ slave trade site ⓘ |
| alsoKnownAs |
São Jorge Castle
ⓘ
surface form:
Castelo de São Jorge da Mina
Elmina Castle ⓘ Elmina Castle ⓘ
surface form:
São Jorge da Mina Castle
|
| associatedWith |
European colonialism in West Africa
ⓘ
transatlantic slave trade ⓘ |
| builder |
Kingdom of Portugal
ⓘ
Portuguese Empire ⓘ |
| capturedBy | Dutch West India Company ⓘ |
| capturedFrom | Portugal ⓘ |
| capturedYear | 1637 ⓘ |
| constructionStart | 1482 ⓘ |
| continent | Africa ⓘ |
| controlledBy |
Dutch Republic
ⓘ
Kingdom of Great Britain ⓘ Portugal ⓘ |
| country | Ghana ⓘ |
| currentUse |
museum
ⓘ
site of remembrance for victims of slavery ⓘ tourist attraction ⓘ |
| feature |
chapel
ⓘ
courtyards ⓘ dungeons for enslaved Africans ⓘ governor’s residence ⓘ sea-facing bastions ⓘ |
| foundedBy | Diogo de Azambuja ⓘ |
| governingBody | Ghana Museums and Monuments Board ⓘ |
| heritageDesignation | UNESCO World Heritage Site ⓘ |
| historicalPeriod |
Age of Exploration
ⓘ
surface form:
Age of Discovery
|
| historicalUse | holding enslaved Africans before transatlantic deportation ⓘ |
| laterControlledBy | British Empire ⓘ |
| locatedIn |
Central Region, Ghana
ⓘ
Elmina ⓘ |
| locatedNear |
Benya Lagoon
ⓘ
Elmina ⓘ
surface form:
Elmina fishing harbor
|
| locatedOn |
Atlantic Ocean
ⓘ
Gulf of Guinea ⓘ |
| material | stone ⓘ |
| partOf |
Forts and Castles, Volta, Greater Accra, Central and Western Regions
ⓘ
surface form:
Forts and Castles, Volta, Greater Accra, Central and Western Regions (UNESCO serial site)
|
| purpose |
center of the transatlantic slave trade
ⓘ
fortified trading post ⓘ gold trading fort ⓘ |
| significance |
major hub of the Atlantic slave trade
ⓘ
one of the oldest European buildings in sub-Saharan Africa ⓘ |
| UNESCOInscriptionYear | 1979 ⓘ |
| UNESCOSiteId | 34 ⓘ |
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: St. George’s Castle Description of subject: St. George’s Castle is a historic Portuguese-built fortress in Elmina, Ghana, that became one of the most significant centers of the transatlantic slave trade.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.