Thetford Castle earthworks
E582537
Thetford Castle earthworks are the remaining earth and ditch fortifications of a Norman motte-and-bailey castle in Thetford, Norfolk, England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Thetford Castle earthworks canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6277448 — 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: Thetford Castle earthworks Context triple: [Thetford, hasLandmark, Thetford Castle earthworks]
-
A.
Bedford Castle Mound
Bedford Castle Mound is the remaining earthwork of a former medieval castle in Bedford, England, now serving as a historic site and public viewpoint.
-
B.
Uffington Castle
Uffington Castle is an Iron Age hillfort in Oxfordshire, England, known for its impressive earthworks and proximity to the prehistoric Uffington White Horse.
-
C.
Maiden Castle hillfort
Maiden Castle hillfort is an ancient defensive earthwork located within the Lomond Hills of Fife, Scotland, notable for its prehistoric archaeological remains.
-
D.
Tilbury Fort
Tilbury Fort is a historic artillery fort on the north bank of the River Thames in Essex, England, best known for defending London from seaborne attack from the 16th century onwards.
-
E.
Maiden Castle
Maiden Castle is one of the largest and most impressive Iron Age hillforts in Europe, located near Dorchester in Dorset, England.
- 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: Thetford Castle earthworks Target entity description: Thetford Castle earthworks are the remaining earth and ditch fortifications of a Norman motte-and-bailey castle in Thetford, Norfolk, England.
-
A.
Bedford Castle Mound
Bedford Castle Mound is the remaining earthwork of a former medieval castle in Bedford, England, now serving as a historic site and public viewpoint.
-
B.
Uffington Castle
Uffington Castle is an Iron Age hillfort in Oxfordshire, England, known for its impressive earthworks and proximity to the prehistoric Uffington White Horse.
-
C.
Maiden Castle hillfort
Maiden Castle hillfort is an ancient defensive earthwork located within the Lomond Hills of Fife, Scotland, notable for its prehistoric archaeological remains.
-
D.
Tilbury Fort
Tilbury Fort is a historic artillery fort on the north bank of the River Thames in Essex, England, best known for defending London from seaborne attack from the 16th century onwards.
-
E.
Maiden Castle
Maiden Castle is one of the largest and most impressive Iron Age hillforts in Europe, located near Dorchester in Dorset, England.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
archaeological site
ⓘ
castle earthworks ⓘ scheduled monument ⓘ |
| builtAfter | Norman Conquest of England ⓘ |
| builtFor | defence ⓘ |
| castleType | motte-and-bailey castle ⓘ |
| category |
Ruined castles in Norfolk
ⓘ
Scheduled monuments in Norfolk ⓘ Thetford, Norfolk ⓘ
linked to:
Thetford
|
| constructionPeriod | 11th century ⓘ |
| country | United Kingdom ⓘ |
| culture | Norman ⓘ |
| currentCondition | ruin ⓘ |
| currentUse | historical site ⓘ |
| hasPart |
bailey
ⓘ
ditch ⓘ motte ⓘ rampart ⓘ |
| heritageDesignation | Scheduled Monument ⓘ |
| heritageDesignationCountry | United Kingdom ⓘ |
| locatedIn |
England
ⓘ
Norfolk ⓘ Thetford ⓘ |
| locatedNear | River Little Ouse ⓘ |
| locatedOnWatercourse | River Thet ⓘ |
| material | earth ⓘ |
| openToPublic | yes ⓘ |
| partOf | Thetford Castle ⓘ |
| region | East of England ⓘ |
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: Thetford Castle earthworks Description of subject: Thetford Castle earthworks are the remaining earth and ditch fortifications of a Norman motte-and-bailey castle in Thetford, Norfolk, England.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.