Roger Bigod, 1st Earl of Norfolk
E496482
Roger Bigod, 1st Earl of Norfolk, was a prominent 12th-century Anglo-Norman nobleman and royal official who became one of the most powerful magnates in East Anglia and a key figure in the early English earldom of Norfolk.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Roger Bigod, 1st Earl of Norfolk canonical | 1 |
| Roger Bigod, 5th Earl of Norfolk | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5028042 — 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: Roger Bigod, 1st Earl of Norfolk Context triple: [William d’Aubigny (butler of King Henry I), fatherInLaw, Roger Bigod, 1st Earl of Norfolk]
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A.
Thomas of Brotherton, 1st Earl of Norfolk
Thomas of Brotherton, 1st Earl of Norfolk, was a younger son of King Edward I of England who became a prominent nobleman and ancestor of later English royal lines in the early 14th century.
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B.
John Howard, 1st Duke of Norfolk
John Howard, 1st Duke of Norfolk, was a prominent 15th-century English nobleman, soldier, and staunch supporter of King Richard III who became the first Howard to hold the dukedom of Norfolk.
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C.
Thomas Mowbray, 1st Duke of Norfolk
Thomas Mowbray, 1st Duke of Norfolk, was a prominent English nobleman and military leader of the late 14th century, notable for his role in the politics of Richard II’s reign and his depiction in Shakespeare’s play "Richard II."
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D.
John Mowbray, 2nd Duke of Norfolk
John Mowbray, 2nd Duke of Norfolk was a prominent 15th-century English nobleman and military leader from the powerful Mowbray family who played a significant role in the politics of late medieval England.
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E.
John Mowbray, 4th Duke of Norfolk
John Mowbray, 4th Duke of Norfolk was a prominent 15th-century English nobleman and magnate who played a leading role in the politics and military affairs of the late medieval kingdom.
- 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: Roger Bigod, 1st Earl of Norfolk Target entity description: Roger Bigod, 1st Earl of Norfolk, was a prominent 12th-century Anglo-Norman nobleman and royal official who became one of the most powerful magnates in East Anglia and a key figure in the early English earldom of Norfolk.
-
A.
Thomas of Brotherton, 1st Earl of Norfolk
Thomas of Brotherton, 1st Earl of Norfolk, was a younger son of King Edward I of England who became a prominent nobleman and ancestor of later English royal lines in the early 14th century.
-
B.
John Howard, 1st Duke of Norfolk
John Howard, 1st Duke of Norfolk, was a prominent 15th-century English nobleman, soldier, and staunch supporter of King Richard III who became the first Howard to hold the dukedom of Norfolk.
-
C.
Thomas Mowbray, 1st Duke of Norfolk
Thomas Mowbray, 1st Duke of Norfolk, was a prominent English nobleman and military leader of the late 14th century, notable for his role in the politics of Richard II’s reign and his depiction in Shakespeare’s play "Richard II."
-
D.
John Mowbray, 2nd Duke of Norfolk
John Mowbray, 2nd Duke of Norfolk was a prominent 15th-century English nobleman and military leader from the powerful Mowbray family who played a significant role in the politics of late medieval England.
-
E.
John Mowbray, 4th Duke of Norfolk
John Mowbray, 4th Duke of Norfolk was a prominent 15th-century English nobleman and magnate who played a leading role in the politics and military affairs of the late medieval kingdom.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
Anglo-Norman nobleman
ⓘ
Earl ⓘ Earl of Norfolk ⓘ English nobleman ⓘ medieval magnate ⓘ royal official ⓘ |
| aristocraticTitle | Earl ⓘ |
| centuryOfActivity | 12th century ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| ethnicGroup | Norman NERFINISHED ⓘ |
| familyName | Bigod NERFINISHED ⓘ |
| gender | male ⓘ |
| givenName | Roger ⓘ |
| hasTerritorialBase |
East Anglia
NERFINISHED
ⓘ
Norfolk NERFINISHED ⓘ |
| historicalPeriod | High Middle Ages ⓘ |
| languageOfWorkOrName |
Anglo-Norman French
NERFINISHED
ⓘ
Latin ⓘ |
| nobleFamily | Bigod family NERFINISHED ⓘ |
| nobleTitle | Earl of Norfolk NERFINISHED ⓘ |
| notableFor |
being a powerful Anglo-Norman magnate in East Anglia
ⓘ
holding the early English earldom of Norfolk ⓘ |
| ordinalInTitle | 1st Earl of Norfolk NERFINISHED ⓘ |
| partOf | Anglo-Norman aristocracy ⓘ |
| positionHeld |
Earl of Norfolk
NERFINISHED
ⓘ
prominent magnate in East Anglia ⓘ royal official in England ⓘ |
| realm | England NERFINISHED ⓘ |
| region | East Anglia NERFINISHED ⓘ |
| socialClass | high nobility ⓘ |
| titleHolderOf | Earldom of Norfolk NERFINISHED ⓘ |
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: Roger Bigod, 1st Earl of Norfolk Description of subject: Roger Bigod, 1st Earl of Norfolk, was a prominent 12th-century Anglo-Norman nobleman and royal official who became one of the most powerful magnates in East Anglia and a key figure in the early English earldom of Norfolk.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Roger Bigod, 5th Earl of Norfolk