Boldt Castle
E678330
Boldt Castle is a grand early-20th-century mansion and popular tourist attraction located on Heart Island in the Thousand Islands region of the Saint Lawrence River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Boldt Castle canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T7630132 — 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: Boldt Castle Context triple: [Thousand Islands, hasPart, Boldt Castle]
-
A.
Windeck Castle
Windeck Castle is a medieval hilltop castle ruin overlooking the town of Weinheim in southwestern Germany.
-
B.
Bouillon Castle
Bouillon Castle is a medieval fortress in Bouillon, Belgium, best known as the stronghold of the First Crusade leader Godfrey of Bouillon and a prominent example of feudal military architecture.
-
C.
Red Castle fortress
Red Castle fortress is a historic coastal stronghold in Tripoli, Libya, notable for its distinctive red walls and its role as a major landmark and cultural heritage site.
-
D.
Wulff Castle
Wulff Castle is a historic, European-style mansion perched on the coastal rocks of Viña del Mar, Chile, now serving as a cultural and heritage landmark.
-
E.
Grandson Castle
Grandson Castle is a well-preserved medieval fortress in the municipality of Grandson in Switzerland, renowned for its historical significance and imposing lakeside setting.
- 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: Boldt Castle Target entity description: Boldt Castle is a grand early-20th-century mansion and popular tourist attraction located on Heart Island in the Thousand Islands region of the Saint Lawrence River.
-
A.
Windeck Castle
Windeck Castle is a medieval hilltop castle ruin overlooking the town of Weinheim in southwestern Germany.
-
B.
Bouillon Castle
Bouillon Castle is a medieval fortress in Bouillon, Belgium, best known as the stronghold of the First Crusade leader Godfrey of Bouillon and a prominent example of feudal military architecture.
-
C.
Red Castle fortress
Red Castle fortress is a historic coastal stronghold in Tripoli, Libya, notable for its distinctive red walls and its role as a major landmark and cultural heritage site.
-
D.
Wulff Castle
Wulff Castle is a historic, European-style mansion perched on the coastal rocks of Viña del Mar, Chile, now serving as a cultural and heritage landmark.
-
E.
Grandson Castle
Grandson Castle is a well-preserved medieval fortress in the municipality of Grandson in Switzerland, renowned for its historical significance and imposing lakeside setting.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
castle
ⓘ
tourist attraction ⓘ |
| accessibleBy |
boat
ⓘ
private watercraft ⓘ tour boat ⓘ |
| architecturalStyle |
Châteauesque
ⓘ
Revival architecture ⓘ |
| builtFor | George C. Boldt NERFINISHED ⓘ |
| constructionEndDate | 1904 ⓘ |
| constructionStartDate | 1900 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasPart |
Alster Tower
NERFINISHED
ⓘ
Archways ⓘ Dovecote ⓘ Drawbridge NERFINISHED ⓘ Hennery ⓘ Italian gardens ⓘ Peristyle ⓘ Power House NERFINISHED ⓘ Yacht House NERFINISHED ⓘ |
| hasUse |
museum
ⓘ
tourist attraction ⓘ wedding venue ⓘ |
| heritageDesignation | National Register of Historic Places ⓘ |
| locatedIn |
Alexandria Bay
NERFINISHED
ⓘ
Heart Island NERFINISHED ⓘ Jefferson County, New York NERFINISHED ⓘ New York ⓘ
surface form:
New York (state)
Saint Lawrence River NERFINISHED ⓘ Thousand Islands NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| locatedOnWaterBody | Saint Lawrence River NERFINISHED ⓘ |
| materialUsed |
concrete
ⓘ
steel ⓘ stone ⓘ |
| namedAfter | George C. Boldt NERFINISHED ⓘ |
| nearbyCity | Alexandria Bay, New York NERFINISHED ⓘ |
| NRHPListingDate | 1977 ⓘ |
| NRHPReferenceNumber | 77000946 ⓘ |
| numberOfFloorsAboveGround | 6 ⓘ |
| openToPublic | true ⓘ |
| owner | Thousand Islands Bridge Authority NERFINISHED ⓘ |
| region | Thousand Islands region NERFINISHED ⓘ |
| restorationStartDate | 1977 ⓘ |
| significantEvent | construction halted after death of Louise Boldt ⓘ |
| touristAttractionSince | 1970s ⓘ |
| yearOfAbandonment | 1904 ⓘ |
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: Boldt Castle Description of subject: Boldt Castle is a grand early-20th-century mansion and popular tourist attraction located on Heart Island in the Thousand Islands region of the Saint Lawrence River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Thousand Islands