Western Penitentiary of Pennsylvania
E735355
Western Penitentiary of Pennsylvania was a historic state prison in Pittsburgh known for housing notable political prisoners and anarchists, including Alexander Berkman.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Western Penitentiary of Pennsylvania canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8460351 — 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: Western Penitentiary of Pennsylvania Context triple: [Alexander Berkman, placeOfDetention, Western Penitentiary of Pennsylvania]
-
A.
Bucks County Prison
Bucks County Prison was a historic correctional facility in Doylestown, Pennsylvania, whose former site now houses the James A. Michener Art Museum.
-
B.
Holmesburg Prison
Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.
-
C.
Eastern State Penitentiary
Eastern State Penitentiary is a historic former prison in Philadelphia, Pennsylvania, renowned for its revolutionary radial design and as one of the most famous and expensive prisons of the 19th century.
-
D.
Holmesburg
Holmesburg is a historic residential neighborhood in the Northeast section of Philadelphia, known for its rowhomes, proximity to the Pennypack Creek, and long-established community character.
-
E.
Chester County Prison
Chester County Prison is a historic former correctional facility in West Chester, Pennsylvania, notable for its 19th-century architecture and role in the county’s penal history.
- 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: Western Penitentiary of Pennsylvania Target entity description: Western Penitentiary of Pennsylvania was a historic state prison in Pittsburgh known for housing notable political prisoners and anarchists, including Alexander Berkman.
-
A.
Bucks County Prison
Bucks County Prison was a historic correctional facility in Doylestown, Pennsylvania, whose former site now houses the James A. Michener Art Museum.
-
B.
Holmesburg Prison
Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.
-
C.
Eastern State Penitentiary
Eastern State Penitentiary is a historic former prison in Philadelphia, Pennsylvania, renowned for its revolutionary radial design and as one of the most famous and expensive prisons of the 19th century.
-
D.
Holmesburg
Holmesburg is a historic residential neighborhood in the Northeast section of Philadelphia, known for its rowhomes, proximity to the Pennypack Creek, and long-established community character.
-
E.
Chester County Prison
Chester County Prison is a historic former correctional facility in West Chester, Pennsylvania, notable for its 19th-century architecture and role in the county’s penal history.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
correctional facility
ⓘ
historic site ⓘ state prison ⓘ |
| adjacentTo | Allegheny River Boulevard ⓘ |
| alsoKnownAs |
Western Penitentiary
ⓘ
linked to:
Western State Penitentiary
Western State Penitentiary ⓘ |
| architecturalStyle | radial plan ⓘ |
| category |
Buildings and structures in Pittsburgh
ⓘ
Defunct prisons in Pennsylvania ⓘ Prisons in Pennsylvania ⓘ |
| city |
Pittsburgh
ⓘ
linked to:
Pittsburgh, Pennsylvania
|
| closed | 2017 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| demolished | 2018 ⓘ |
| designedFor | separate system of confinement ⓘ |
| dissolved | 2017 ⓘ |
| function | imprisonment of convicted offenders ⓘ |
| governingBody |
Commonwealth of Pennsylvania
ⓘ
linked to:
Pennsylvania
|
| hasFacilityType |
administration building
ⓘ
cell blocks ⓘ exercise yards ⓘ |
| hasNotableTheme |
anarchist movement history
ⓘ
political repression ⓘ |
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| historicalPeriod |
19th century American penal system
ⓘ
Progressive Era prison reform ⓘ |
| inception | 1826 ⓘ |
| locatedIn |
Allegheny County, Pennsylvania
ⓘ
linked to:
Allegheny County
|
| locatedOn | Ohio River ⓘ |
| movedToNewSite | 1878 ⓘ |
| near | Aspinwall, Pennsylvania ⓘ |
| notableFor |
housing anarchist prisoners
ⓘ
housing political prisoners ⓘ |
| notableInmate |
Alexander Berkman
ⓘ
Emma Goldman ⓘ Eugene V. Debs ⓘ |
| NRHPType | historic district contributing property ⓘ |
| opened | 1826 ⓘ |
| operatedBy | Pennsylvania Department of Corrections ⓘ |
| originalLocation |
Allegheny City, Pennsylvania
ⓘ
linked to:
Allegheny, Pennsylvania
|
| partOf |
Pennsylvania state prison system
ⓘ
linked to:
Pennsylvania Department of Corrections
|
| securityClass | maximum security ⓘ |
| state | Pennsylvania ⓘ |
| usedAs | site of labor and political imprisonment ⓘ |
| usedFor | federal prisoners at various times ⓘ |
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: Western Penitentiary of Pennsylvania Description of subject: Western Penitentiary of Pennsylvania was a historic state prison in Pittsburgh known for housing notable political prisoners and anarchists, including Alexander Berkman.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.