Castillo San Felipe del Morro
E54331
Castillo San Felipe del Morro is a historic 16th-century Spanish fortress in San Juan, Puerto Rico, renowned for guarding the entrance to San Juan Bay and serving as a key military stronghold in the Caribbean.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T429919 — 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: Castillo San Felipe del Morro Context triple: [Castillo San Cristóbal, near, Castillo San Felipe del Morro]
-
A.
Castillo del Morro
Castillo del Morro is a historic Spanish fortress guarding the entrance to Havana Bay, renowned for its strategic coastal defenses and iconic lighthouse.
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B.
Castillo San Cristóbal
Castillo San Cristóbal is a massive 18th-century Spanish fortress in San Juan, Puerto Rico, built to protect the city from land-based attacks and now part of a UNESCO World Heritage Site.
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C.
La Fortaleza
La Fortaleza is the historic governor’s mansion and fortress in Old San Juan, Puerto Rico, recognized as one of the oldest continuously used executive residences in the Americas and a UNESCO World Heritage Site.
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D.
San Juan city walls
The San Juan city walls are massive 16th–18th century fortifications encircling Old San Juan, Puerto Rico, built by the Spanish to defend the colonial port from seaborne attacks.
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E.
Fort Wadsworth
Fort Wadsworth is a historic former military installation and coastal defense fortification located at the Narrows in New York Harbor, now part of the Gateway National Recreation Area.
- 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: Castillo San Felipe del Morro Target entity description: Castillo San Felipe del Morro is a historic 16th-century Spanish fortress in San Juan, Puerto Rico, renowned for guarding the entrance to San Juan Bay and serving as a key military stronghold in the Caribbean.
-
A.
Castillo del Morro
Castillo del Morro is a historic Spanish fortress guarding the entrance to Havana Bay, renowned for its strategic coastal defenses and iconic lighthouse.
-
B.
Castillo San Cristóbal
Castillo San Cristóbal is a massive 18th-century Spanish fortress in San Juan, Puerto Rico, built to protect the city from land-based attacks and now part of a UNESCO World Heritage Site.
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C.
La Fortaleza
La Fortaleza is the historic governor’s mansion and fortress in Old San Juan, Puerto Rico, recognized as one of the oldest continuously used executive residences in the Americas and a UNESCO World Heritage Site.
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D.
San Juan city walls
The San Juan city walls are massive 16th–18th century fortifications encircling Old San Juan, Puerto Rico, built by the Spanish to defend the colonial port from seaborne attacks.
-
E.
Fort Wadsworth
Fort Wadsworth is a historic former military installation and coastal defense fortification located at the Narrows in New York Harbor, now part of the Gateway National Recreation Area.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
coastal fortification
ⓘ
cultural heritage site ⓘ fortress ⓘ tourist attraction ⓘ |
| architecturalStyle |
Renaissance military architecture
ⓘ
military architecture ⓘ |
| attackedBy |
Francis Drake
ⓘ
surface form:
Sir Francis Drake
|
| attackedIn | 1595 ⓘ |
| besiegedIn | 1598 ⓘ |
| builtFor |
defense of San Juan Bay
ⓘ
protection of Spanish colonial shipping routes ⓘ |
| constructedBy |
Kingdom of Spain
ⓘ
Spanish Empire ⓘ |
| constructionStart | 1539 ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| elevation | approximately 45 meters above sea level ⓘ |
| garrisonedUntil | mid-20th century ⓘ |
| hasFeature |
bastions
ⓘ
cannon batteries ⓘ garitas ⓘ lighthouse ⓘ moat ⓘ ramparts ⓘ |
| heritageDesignation |
U.S. National Historic Site
ⓘ
UNESCO World Heritage Site ⓘ |
| locatedIn |
Old San Juan
ⓘ
Puerto Rico ⓘ San Juan ⓘ San Juan, Puerto Rico ⓘ |
| locatedOn | Isla de San Juan ⓘ |
| materialUsed |
masonry
ⓘ
stone ⓘ |
| namedAfter | Philip II of Spain ⓘ |
| openToPublic | yes ⓘ |
| operator |
National Park Service
ⓘ
surface form:
U.S. National Park Service
|
| overlooks | San Juan Bay ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
San Juan National Historic Site
ⓘ
San Juan National Historic Site ⓘ
surface form:
World Heritage Site "La Fortaleza and San Juan National Historic Site in Puerto Rico"
|
| significantExpansion |
17th century
ⓘ
late 16th century ⓘ |
| strategicRole | key military stronghold in the Caribbean ⓘ |
| touristAttraction | major ⓘ |
| usedBy |
Spanish Army
ⓘ
United States Army ⓘ |
| usedDuring |
Anglo-Spanish conflicts in the Caribbean
ⓘ
Spanish–American War ⓘ |
| visitorActivities |
historical tours
ⓘ
museum exhibits ⓘ recreational walking on grounds ⓘ |
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: Castillo San Felipe del Morro Description of subject: Castillo San Felipe del Morro is a historic 16th-century Spanish fortress in San Juan, Puerto Rico, renowned for guarding the entrance to San Juan Bay and serving as a key military stronghold in the Caribbean.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fortín San Juan de la Cruz
this entity surface form:
El Morro esplanade walls
this entity surface form:
Castillo San Felipe del Morro garrison
this entity surface form:
Castillo San Felipe del Morro, San Juan
this entity surface form:
Castillo San Felipe del Morro (nearby)