Cornelius Vanderbilt II House, New York City
E24640
The Cornelius Vanderbilt II House in New York City was a grand Gilded Age Fifth Avenue mansion, once among the largest and most opulent private residences in the United States.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Cornelius Vanderbilt II House | 3 |
| Cornelius Vanderbilt II House, New York City canonical | 1 |
| Vanderbilt mansion at 640 Fifth Avenue, New York City | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T143032 — 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: Cornelius Vanderbilt II House, New York City Context triple: [Richard Morris Hunt, notableWork, Cornelius Vanderbilt II House, New York City]
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A.
William K. Vanderbilt House (Petit Château), New York
The William K. Vanderbilt House, or "Petit Château," was an opulent French Renaissance–style mansion on New York’s Fifth Avenue, famed as a Gilded Age showpiece of wealth and architectural grandeur.
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B.
Albany City Hall
Albany City Hall is the historic municipal government building of Albany, New York, noted for its Romanesque Revival architecture and prominent clock tower.
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C.
Federal Hall National Memorial
Federal Hall National Memorial is a historic site in New York City that commemorates the location of the first U.S. Capitol and George Washington’s inauguration as the nation’s first president.
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D.
United Nations Plaza
United Nations Plaza is the public square and surrounding area in Manhattan, New York City, that serves as the primary urban setting and address for the United Nations Headquarters.
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E.
Rockefeller Center
Rockefeller Center is a famous Art Deco commercial complex in Midtown Manhattan known for its iconic ice-skating rink, Christmas tree, and the Top of the Rock observation deck.
- 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: Cornelius Vanderbilt II House, New York City Target entity description: The Cornelius Vanderbilt II House in New York City was a grand Gilded Age Fifth Avenue mansion, once among the largest and most opulent private residences in the United States.
-
A.
William K. Vanderbilt House (Petit Château), New York
The William K. Vanderbilt House, or "Petit Château," was an opulent French Renaissance–style mansion on New York’s Fifth Avenue, famed as a Gilded Age showpiece of wealth and architectural grandeur.
-
B.
Albany City Hall
Albany City Hall is the historic municipal government building of Albany, New York, noted for its Romanesque Revival architecture and prominent clock tower.
-
C.
Federal Hall National Memorial
Federal Hall National Memorial is a historic site in New York City that commemorates the location of the first U.S. Capitol and George Washington’s inauguration as the nation’s first president.
-
D.
United Nations Plaza
United Nations Plaza is the public square and surrounding area in Manhattan, New York City, that serves as the primary urban setting and address for the United Nations Headquarters.
-
E.
Rockefeller Center
Rockefeller Center is a famous Art Deco commercial complex in Midtown Manhattan known for its iconic ice-skating rink, Christmas tree, and the Top of the Rock observation deck.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Gilded Age mansion
ⓘ
demolished building ⓘ mansion ⓘ |
| architect |
George B. Post
ⓘ
linked to:
Cass Gilbert
|
| architecturalStyle |
Beaux-Arts
ⓘ
Châteauesque ⓘ |
| associatedWith |
American industrial wealth
ⓘ
Fifth Avenue Millionaires' Row ⓘ
linked to:
Fifth Avenue
Vanderbilt family ⓘ |
| builtFor | Cornelius Vanderbilt II ⓘ |
| category |
Demolished buildings and structures in Manhattan
ⓘ
Gilded Age mansions ⓘ Vanderbilt family residences ⓘ |
| cityBlock |
Fifth Avenue between 57th and 58th Streets
ⓘ
linked to:
Fifth Avenue and 58th Street
|
| client | Cornelius Vanderbilt II ⓘ |
| completionDate | 1883 ⓘ |
| cornerOf | Fifth Avenue and West 57th Street ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| demolishedFor | commercial development ⓘ |
| demolitionDate | 1926 ⓘ |
| era | Gilded Age ⓘ |
| expanded | 1890s ⓘ |
| hasFeature |
elaborate ironwork
ⓘ
formal gardens ⓘ mansard roof ⓘ ornate dormers ⓘ |
| knownFor |
being one of the largest private residences in New York City
ⓘ
opulent Gilded Age architecture ⓘ symbol of Vanderbilt family wealth ⓘ |
| laterOwner |
Alice Claypoole Vanderbilt
ⓘ
Vanderbilt family ⓘ |
| locatedIn | New York City ⓘ |
| locatedInBorough | Manhattan ⓘ |
| locatedInNeighborhood | Midtown Manhattan ⓘ |
| locatedOn | Fifth Avenue ⓘ |
| material | stone ⓘ |
| notableFeature |
elaborate grand staircase
ⓘ
extensive art collection ⓘ large central courtyard ⓘ lavish interiors ⓘ |
| numberOfFloors | 5 ⓘ |
| owner | Cornelius Vanderbilt II ⓘ |
| replacedBy |
Bergdorf Goodman building
ⓘ
linked to:
Bergdorf Goodman store
|
| startDate | 1880s ⓘ |
| state | New York ⓘ |
| streetAddress | 1 West 57th Street ⓘ |
| timePeriod |
early 20th century
ⓘ
late 19th century ⓘ |
| use | private residence ⓘ |
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: Cornelius Vanderbilt II House, New York City Description of subject: The Cornelius Vanderbilt II House in New York City was a grand Gilded Age Fifth Avenue mansion, once among the largest and most opulent private residences in the United States.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cornelius Vanderbilt II House, New York City
linked to: Cornelius Vanderbilt II House, New York City
linked to: Cornelius Vanderbilt II House, New York City
linked to: Cornelius Vanderbilt II House, New York City