Geoffrey de Mandeville, 2nd Earl of Essex
E174470
Geoffrey de Mandeville, 2nd Earl of Essex, was a prominent 12th-century English nobleman and magnate who held extensive lands and influence during the reigns of Kings Richard I and John.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Geoffrey de Mandeville, 1st Earl of Essex | 1 |
| Geoffrey de Mandeville, 2nd Earl of Essex canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1495722 — 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: Geoffrey de Mandeville, 2nd Earl of Essex Context triple: [Isabella of Gloucester, spouse, Geoffrey de Mandeville, 2nd Earl of Essex]
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A.
William of Hatfield
William of Hatfield was a short-lived English prince of the 14th century, one of the younger sons of King Edward III and Philippa of Hainault.
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B.
William FitzRobert, 2nd Earl of Gloucester
William FitzRobert, 2nd Earl of Gloucester, was a prominent 12th-century Anglo-Norman nobleman and feudal magnate who held extensive lands in England and Wales and played a significant role in the politics of the reigns of Kings Stephen and Henry II.
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C.
Edmund Crouchback, 1st Earl of Lancaster
Edmund Crouchback, 1st Earl of Lancaster, was a 13th-century English prince and military leader who became a powerful noble through extensive landholdings and royal favor, founding the House of Lancaster.
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D.
Robert de Eglesfield
Robert de Eglesfield was a 14th-century English cleric and royal chaplain best known as the founder of The Queen’s College, Oxford.
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E.
Richard de Montfort
Richard de Montfort was a medieval nobleman of the Montfort family, notable as a descendant of English royalty through his mother Eleanor of England, Countess of Pembroke.
- 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: Geoffrey de Mandeville, 2nd Earl of Essex Target entity description: Geoffrey de Mandeville, 2nd Earl of Essex, was a prominent 12th-century English nobleman and magnate who held extensive lands and influence during the reigns of Kings Richard I and John.
-
A.
William of Hatfield
William of Hatfield was a short-lived English prince of the 14th century, one of the younger sons of King Edward III and Philippa of Hainault.
-
B.
William FitzRobert, 2nd Earl of Gloucester
William FitzRobert, 2nd Earl of Gloucester, was a prominent 12th-century Anglo-Norman nobleman and feudal magnate who held extensive lands in England and Wales and played a significant role in the politics of the reigns of Kings Stephen and Henry II.
-
C.
Edmund Crouchback, 1st Earl of Lancaster
Edmund Crouchback, 1st Earl of Lancaster, was a 13th-century English prince and military leader who became a powerful noble through extensive landholdings and royal favor, founding the House of Lancaster.
-
D.
Robert de Eglesfield
Robert de Eglesfield was a 14th-century English cleric and royal chaplain best known as the founder of The Queen’s College, Oxford.
-
E.
Richard de Montfort
Richard de Montfort was a medieval nobleman of the Montfort family, notable as a descendant of English royalty through his mother Eleanor of England, Countess of Pembroke.
- F. None of above. chosen
Statements (41)
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: Geoffrey de Mandeville, 2nd Earl of Essex Description of subject: Geoffrey de Mandeville, 2nd Earl of Essex, was a prominent 12th-century English nobleman and magnate who held extensive lands and influence during the reigns of Kings Richard I and John.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Geoffrey de Mandeville, 2nd Earl of Essex
→
father
→
Geoffrey de Mandeville, 2nd Earl of Essex
self-linksurface differs
ⓘ
this entity surface form:
Geoffrey de Mandeville, 1st Earl of Essex