Orford Castle
E193945
Orford Castle is a well-preserved 12th-century royal fortress in Suffolk, England, notable for its unique polygonal keep and historical significance in medieval coastal defense.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Orford Castle canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T1721350 — 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: Orford Castle Context triple: [Orford, Suffolk, hasHeritageSite, Orford Castle]
-
A.
Dover Castle
Dover Castle is a historic medieval fortress in Dover, England, strategically overlooking the English Channel and often called the "Key to England" for its long military significance.
-
B.
Monmouth Castle
Monmouth Castle is a historic medieval fortress in Monmouth, Wales, best known as the birthplace of King Henry V of England.
-
C.
Norwich Castle
Norwich Castle is a historic Norman fortress and former royal palace in the city of Norwich, now serving as a museum and art gallery.
-
D.
Carisbrooke Castle
Carisbrooke Castle is a historic motte-and-bailey fortress on the Isle of Wight, England, best known as the place where King Charles I was imprisoned before his execution.
-
E.
Pembroke Castle
Pembroke Castle is a large medieval fortress in Pembrokeshire, Wales, notable as one of the best-preserved Norman castles in Britain and for its strong historical associations with the Tudor dynasty.
- 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: Orford Castle Target entity description: Orford Castle is a well-preserved 12th-century royal fortress in Suffolk, England, notable for its unique polygonal keep and historical significance in medieval coastal defense.
-
A.
Dover Castle
Dover Castle is a historic medieval fortress in Dover, England, strategically overlooking the English Channel and often called the "Key to England" for its long military significance.
-
B.
Monmouth Castle
Monmouth Castle is a historic medieval fortress in Monmouth, Wales, best known as the birthplace of King Henry V of England.
-
C.
Norwich Castle
Norwich Castle is a historic Norman fortress and former royal palace in the city of Norwich, now serving as a museum and art gallery.
-
D.
Carisbrooke Castle
Carisbrooke Castle is a historic motte-and-bailey fortress on the Isle of Wight, England, best known as the place where King Charles I was imprisoned before his execution.
-
E.
Pembroke Castle
Pembroke Castle is a large medieval fortress in Pembrokeshire, Wales, notable as one of the best-preserved Norman castles in Britain and for its strong historical associations with the Tudor dynasty.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Grade I listed building
ⓘ
medieval castle ⓘ royal fortress ⓘ scheduled monument ⓘ |
| architecturalFeature |
cylindrical central tower
ⓘ
polygonal keep ⓘ three attached rectangular turrets ⓘ |
| architecturalStyle | Norman military architecture ⓘ |
| builtFor | Henry II of England ⓘ |
| builtToControl |
Orford, Suffolk
ⓘ
surface form:
Orford harbour
local trade routes ⓘ |
| constructedInCentury | 12th century ⓘ |
| constructionEndYear | 1173 ⓘ |
| constructionStartYear | 1165 ⓘ |
| contains |
basement storerooms
ⓘ
chapel ⓘ hall ⓘ rooftop viewing area ⓘ |
| country | England ⓘ |
| currentUse |
historical monument
ⓘ
tourist attraction ⓘ |
| garrisonFunction | royal garrison ⓘ |
| hasCondition | well-preserved keep ⓘ |
| hasFeature |
arrow slits
ⓘ
spiral staircases ⓘ thick defensive walls ⓘ |
| heritageDesignation |
Grade I listed building
ⓘ
Scheduled Ancient Monument ⓘ |
| heritageDesignationDate | 20th century ⓘ |
| historicalPeriod |
Angevin Empire
ⓘ
surface form:
Angevin period
|
| locatedIn | Suffolk ⓘ |
| locatedNear | North Sea coast ⓘ |
| location |
Orford, Suffolk
ⓘ
surface form:
Orford, Suffolk, England
|
| managedBy | English Heritage ⓘ |
| materialUsed | stone ⓘ |
| nearbySettlement |
Orford, Suffolk
ⓘ
surface form:
Orford
|
| notableFor |
role in medieval coastal defense
ⓘ
unique polygonal plan ⓘ well-preserved keep ⓘ |
| openToPublic | yes ⓘ |
| overlooks | River Ore ⓘ |
| owner | English Heritage ⓘ |
| partOf | medieval coastal defense network of England ⓘ |
| purpose |
coastal defense
ⓘ
royal authority projection ⓘ |
| region | East of England ⓘ |
| usedDuring |
Middle Ages
ⓘ
Tudor England ⓘ
surface form:
Tudor period
|
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: Orford Castle Description of subject: Orford Castle is a well-preserved 12th-century royal fortress in Suffolk, England, notable for its unique polygonal keep and historical significance in medieval coastal defense.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.