Castillo San Cristóbal
E9689
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Castillo San Cristóbal canonical | 9 |
| San Cristóbal Castle | 2 |
| Castillo de San Cristóbal, San Juan | 1 |
| San Cristóbal Fortress | 1 |
| San Cristóbal glacis walls | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T33227 — 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 Cristóbal Context triple: [San Juan, hasLandmark, Castillo San Cristóbal]
-
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.
San Juan Cathedral
San Juan Cathedral is a historic Roman Catholic cathedral in Old San Juan, Puerto Rico, known as one of the oldest churches in the Americas and a prominent colonial-era landmark.
-
C.
Malecón
Malecón is a famous seaside promenade and seawall in Havana, Cuba, known for its ocean views, social life, and historic architecture.
-
D.
Plaza de Armas de La Serena
Plaza de Armas de La Serena is the historic main square of La Serena, Chile, known for its colonial architecture, central cathedral, and role as a cultural and social hub of the city.
-
E.
Faro Monumental de La Serena
Faro Monumental de La Serena is an iconic coastal lighthouse and landmark in La Serena, Chile, known for its distinctive architecture and popularity as a seaside promenade and photo spot.
- 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 Cristóbal Target entity description: 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.
-
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.
San Juan Cathedral
San Juan Cathedral is a historic Roman Catholic cathedral in Old San Juan, Puerto Rico, known as one of the oldest churches in the Americas and a prominent colonial-era landmark.
-
C.
Malecón
Malecón is a famous seaside promenade and seawall in Havana, Cuba, known for its ocean views, social life, and historic architecture.
-
D.
Plaza de Armas de La Serena
Plaza de Armas de La Serena is the historic main square of La Serena, Chile, known for its colonial architecture, central cathedral, and role as a cultural and social hub of the city.
-
E.
Faro Monumental de La Serena
Faro Monumental de La Serena is an iconic coastal lighthouse and landmark in La Serena, Chile, known for its distinctive architecture and popularity as a seaside promenade and photo spot.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
fortress
ⓘ
historic site ⓘ military fortification ⓘ tourist attraction ⓘ |
| architecturalStyle | Spanish colonial military architecture ⓘ |
| area | approximately 27 acres ⓘ |
| builtBy | Spanish Empire ⓘ |
| category |
Forts in Puerto Rico
ⓘ
U.S. National Historic Site ⓘ
surface form:
National Historic Sites in Puerto Rico
Spanish colonial fortifications in the Caribbean ⓘ |
| completedIn | 1783 ⓘ |
| constructionStart | 1634 ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
coastal defense
ⓘ
land defense ⓘ |
| garrisonedBy | Spanish Army ⓘ |
| hasPart |
bastions
ⓘ
garitas ⓘ moats ⓘ plaza de armas ⓘ ramparts ⓘ sentry boxes ⓘ tunnels ⓘ underground galleries ⓘ |
| heritageCriteria | UNESCO cultural criteria (vi) ⓘ |
| heritageDesignation | UNESCO World Heritage Site ⓘ |
| laterGarrisonedBy | United States Army ⓘ |
| locatedIn |
San Juan
ⓘ
surface form:
Old San Juan
Puerto Rico ⓘ San Juan ⓘ |
| locatedOn |
Puerto Rico
ⓘ
surface form:
Island of Puerto Rico
|
| majorConstructionPeriod | 18th century ⓘ |
| managedBy |
National Park Service
ⓘ
surface form:
U.S. National Park Service
|
| material |
masonry
ⓘ
stone ⓘ |
| near | Castillo San Felipe del Morro ⓘ |
| notableFor | being one of the largest Spanish fortifications in the New World ⓘ |
| openToPublic | yes ⓘ |
| overlooks | Atlantic Ocean ⓘ |
| partOf |
San Juan National Historic Site
ⓘ
defensive system of San Juan ⓘ |
| purpose | to protect San Juan from land-based attacks ⓘ |
| region | Caribbean ⓘ |
| significance | key element of the fortifications of Old San Juan ⓘ |
| usedInConflict | Spanish–American War ⓘ |
| visitorActivities |
guided tours
ⓘ
historical interpretation exhibits ⓘ |
| worldHeritageSiteSince | 1983 ⓘ |
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 Cristóbal Description of subject: 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.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Cristóbal Castle
this entity surface form:
San Cristóbal glacis walls
this entity surface form:
Castillo de San Cristóbal, San Juan
this entity surface form:
San Cristóbal Fortress
this entity surface form:
San Cristóbal Castle