Fortín de San Gerónimo
E529835
Fortín de San Gerónimo is a small coastal fortification in San Juan, Puerto Rico, that played a key defensive role in protecting the city from naval attacks during the colonial era.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T5594635 — 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: Fortín de San Gerónimo Context triple: [British attack on San Juan (1797), hasLocation, Fortín de San Gerónimo]
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A.
Fort San Jerónimo
Fort San Jerónimo is a historic Spanish colonial coastal fortress in Portobelo, Panama, built to defend the harbor and its vital trade routes in the Caribbean.
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B.
Fuerte de Guadalupe
Fuerte de Guadalupe is a historic fort in Puebla, Mexico, best known for its role in the Battle of Puebla on May 5, 1862, where Mexican forces resisted the French army.
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C.
Fuerte de San José el Alto
Fuerte de San José el Alto is a historic coastal fortification in Campeche, Mexico, built during the colonial era to defend the city against pirate attacks and foreign invasions.
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D.
Fuerte de Corral
Fuerte de Corral is a historic coastal fortification in southern Chile, built during the colonial era to defend the strategic port of Corral and the entrance to the Valdivia River.
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E.
Fort San Pedro
Fort San Pedro is a Spanish-era military fort in Cebu City, Philippines, known as one of the country’s oldest and smallest bastions of colonial defense.
- 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: Fortín de San Gerónimo Target entity description: Fortín de San Gerónimo is a small coastal fortification in San Juan, Puerto Rico, that played a key defensive role in protecting the city from naval attacks during the colonial era.
-
A.
Fort San Jerónimo
Fort San Jerónimo is a historic Spanish colonial coastal fortress in Portobelo, Panama, built to defend the harbor and its vital trade routes in the Caribbean.
-
B.
Fuerte de Guadalupe
Fuerte de Guadalupe is a historic fort in Puebla, Mexico, best known for its role in the Battle of Puebla on May 5, 1862, where Mexican forces resisted the French army.
-
C.
Fuerte de San José el Alto
Fuerte de San José el Alto is a historic coastal fortification in Campeche, Mexico, built during the colonial era to defend the city against pirate attacks and foreign invasions.
-
D.
Fuerte de Corral
Fuerte de Corral is a historic coastal fortification in southern Chile, built during the colonial era to defend the strategic port of Corral and the entrance to the Valdivia River.
-
E.
Fort San Pedro
Fort San Pedro is a Spanish-era military fort in Cebu City, Philippines, known as one of the country’s oldest and smallest bastions of colonial defense.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
coastal fortification
ⓘ
fort ⓘ historical site ⓘ |
| builtFor |
defense of San Juan harbor
ⓘ
protection against naval attacks ⓘ |
| commandedApproachTo | eastern entrance to San Juan ⓘ |
| connectedTo | San Cristóbal fortress defensive system NERFINISHED ⓘ |
| constructionStart | late 16th century ⓘ |
| controlledBy |
Spanish Empire
NERFINISHED
ⓘ
United States Army NERFINISHED ⓘ |
| coordinates | 18.463°N 66.086°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentUse |
historic monument
ⓘ
tourist site ⓘ |
| defendedAgainst | British attack of 1797 ⓘ |
| hasFeature |
bastions
ⓘ
cannon embrasures ⓘ guardrooms ⓘ powder magazine ⓘ small courtyard ⓘ thick defensive walls ⓘ |
| hasViewOf |
Condado area
NERFINISHED
ⓘ
Old San Juan skyline ⓘ |
| heritageDesignation |
National Historic Landmark District contributing property
ⓘ
listed on the U.S. National Register of Historic Places ⓘ |
| historicalPeriod | Spanish colonial era ⓘ |
| locatedIn |
Caribbean Sea
NERFINISHED
ⓘ
Puerto Rico ⓘ San Juan NERFINISHED ⓘ San Juan Islet NERFINISHED ⓘ district of Puerta de Tierra NERFINISHED ⓘ |
| locatedNear |
Condado Lagoon
NERFINISHED
ⓘ
Puerta de Tierra isthmus NERFINISHED ⓘ San Antonio Channel NERFINISHED ⓘ |
| materialUsed |
masonry
ⓘ
stone ⓘ |
| nearbyFortification |
Castillo San Cristóbal
NERFINISHED
ⓘ
Castillo San Felipe del Morro NERFINISHED ⓘ |
| NRHPReferenceNumber | 72001539 ⓘ |
| openToPublic | yes ⓘ |
| overlooks | Atlantic Ocean ⓘ |
| owner | Government of Puerto Rico NERFINISHED ⓘ |
| partOf |
San Juan National Historic Site buffer zone
NERFINISHED
ⓘ
defensive system of San Juan ⓘ outer defenses of San Juan NERFINISHED ⓘ |
| rebuiltIn | 18th century ⓘ |
| significantEvent | Battle of San Juan 1797 NERFINISHED ⓘ |
| usedFor |
coastal artillery position
ⓘ
harbor defense ⓘ |
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: Fortín de San Gerónimo Description of subject: Fortín de San Gerónimo is a small coastal fortification in San Juan, Puerto Rico, that played a key defensive role in protecting the city from naval attacks during the colonial era.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fortín de San Gerónimo garrison
this entity surface form:
Fortín San Juan de la Cruz
this entity surface form:
Fortín de San Gerónimo de Boquerón
this entity surface form:
Fortín San Juan de la Cruz
this entity surface form:
Fortín San Juan de la Cruz (El Cañuelo)
this entity surface form:
Fortín de San Juan de la Cruz (El Cañuelo)