Poltross Burn Milecastle
E766824
Poltross Burn Milecastle is a well-preserved Roman fortlet on Hadrian’s Wall near Gilsland in Cumbria, England, notable for its visible remains of barracks and a stairway to the wall walk.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Milecastle 48 | 1 |
| Poltross Burn Milecastle canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8915575 — 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: Poltross Burn Milecastle Context triple: [Gilsland, hasNearbySite, Poltross Burn Milecastle]
-
A.
Bremetennacum Roman fort
Bremetennacum Roman fort was a significant Roman military installation in northern England, located at modern Ribchester and serving as a base for auxiliary troops on the empire’s northwestern frontier.
-
B.
Birdoswald Roman Fort
Birdoswald Roman Fort is a well-preserved Roman military fort in Cumbria, England, that formed part of the defensive frontier system of Hadrian’s Wall.
-
C.
Saalburg Roman fort
Saalburg Roman fort is a reconstructed Roman military camp in Germany that served as part of the frontier defenses along the Upper Germanic-Rhaetian Limes and now functions as an archaeological park and museum.
-
D.
Richborough Roman Fort
Richborough Roman Fort is a major archaeological site in Kent, England, that preserves the remains of a significant Roman military and port complex marking one of the main entry points of Roman Britain.
-
E.
Cramond Roman Fort
Cramond Roman Fort is an ancient Roman military fortification near Edinburgh, Scotland, notable for its role in the northern frontier of Roman Britain and its well-preserved archaeological remains.
- 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: Poltross Burn Milecastle Target entity description: Poltross Burn Milecastle is a well-preserved Roman fortlet on Hadrian’s Wall near Gilsland in Cumbria, England, notable for its visible remains of barracks and a stairway to the wall walk.
-
A.
Bremetennacum Roman fort
Bremetennacum Roman fort was a significant Roman military installation in northern England, located at modern Ribchester and serving as a base for auxiliary troops on the empire’s northwestern frontier.
-
B.
Birdoswald Roman Fort
Birdoswald Roman Fort is a well-preserved Roman military fort in Cumbria, England, that formed part of the defensive frontier system of Hadrian’s Wall.
-
C.
Saalburg Roman fort
Saalburg Roman fort is a reconstructed Roman military camp in Germany that served as part of the frontier defenses along the Upper Germanic-Rhaetian Limes and now functions as an archaeological park and museum.
-
D.
Richborough Roman Fort
Richborough Roman Fort is a major archaeological site in Kent, England, that preserves the remains of a significant Roman military and port complex marking one of the main entry points of Roman Britain.
-
E.
Cramond Roman Fort
Cramond Roman Fort is an ancient Roman military fortification near Edinburgh, Scotland, notable for its role in the northern frontier of Roman Britain and its well-preserved archaeological remains.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Roman fortlet
ⓘ
archaeological site ⓘ milecastle ⓘ |
| access | publicly accessible ⓘ |
| alsoKnownAs |
Milecastle 48
ⓘ
linked to:
Poltross Burn Milecastle
The King's Stables ⓘ |
| builtFor |
border control
ⓘ
frontier defence ⓘ military garrison ⓘ |
| category |
Hadrian's Wall milecastles
ⓘ
Roman sites in Cumbria ⓘ |
| constructionMaterial | stone ⓘ |
| coordinateSystem | British National Grid ⓘ |
| country | England ⓘ |
| culture | Roman ⓘ |
| dateOfConstruction | 2nd century ⓘ |
| foundIn | civil parish of Waterhead ⓘ |
| hasFeature |
barracks remains
ⓘ
gateway remains ⓘ internal building remains ⓘ stairway to wall walk ⓘ visible stone foundations ⓘ |
| hasInterpretationPanels | yes ⓘ |
| hasPreservationStatus | well-preserved ⓘ |
| hasRemainsOf |
latrine block
ⓘ
staircase to rampart walk ⓘ two-storey barrack block ⓘ |
| hasViewOf |
River Irthing valley
ⓘ
linked to:
Irthing Valley
|
| heritageDesignation | Scheduled Monument ⓘ |
| locatedIn |
Cumbria
ⓘ
United Kingdom ⓘ |
| locatedNear | Gilsland ⓘ |
| locatedOn | Hadrian's Wall ⓘ |
| locatedOnWatercourse | Poltross Burn ⓘ |
| managedBy | English Heritage ⓘ |
| nearestSettlement | Gilsland ⓘ |
| nearTransport | Gilsland railway station ⓘ |
| operator | Roman army ⓘ |
| partOf |
Hadrian's Wall Military Zone
ⓘ
linked to:
Hadrian's Wall
Hadrian's Wall World Heritage Site ⓘ
linked to:
Hadrian's Wall
Hadrian's Wall frontier system ⓘ
linked to:
Hadrian's Wall
|
| positionRelativeTo |
east of Willowford Bridge abutment
ⓘ
west of Birdoswald Roman fort ⓘ |
| region | North West England ⓘ |
| timePeriod | Roman Britain ⓘ |
| tourismType | heritage tourism site ⓘ |
| wallSection |
Hadrian's Wall central sector
ⓘ
linked to:
Hadrian's Wall milecastles
|
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: Poltross Burn Milecastle Description of subject: Poltross Burn Milecastle is a well-preserved Roman fortlet on Hadrian’s Wall near Gilsland in Cumbria, England, notable for its visible remains of barracks and a stairway to the wall walk.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Poltross Burn Milecastle