John of Cornwall
E188210
John of Cornwall was a 13th-century English nobleman, the son of Richard, 1st Earl of Cornwall, and a member of the Plantagenet royal family.
All labels observed (2)
| Label | Occurrences |
|---|---|
| John of Cornwall canonical | 1 |
| Richard of Cornwall (son of Richard) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1616056 — 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: John of Cornwall Context triple: [Richard, 1st Earl of Cornwall, child, John of Cornwall]
-
A.
Richard, 1st Earl of Cornwall
Richard, 1st Earl of Cornwall was a 13th-century English prince, wealthy magnate, and elected King of the Romans who played a significant role in European politics during the reigns of his brother Henry III and beyond.
-
B.
John of Eltham, Earl of Cornwall
John of Eltham, Earl of Cornwall, was a 14th-century English prince, the second son of King Edward II and Isabella of France, who played a notable military role in the early stages of the Hundred Years’ War before his early death.
-
C.
Prince Arthur, Duke of Brittany
Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
-
D.
Nicholas of Guildford
Nicholas of Guildford is a medieval English writer believed by some scholars to be the author of the Middle English debate poem *The Owl and the Nightingale*.
-
E.
Prince Arthur of Connaught
Prince Arthur of Connaught was a British royal prince, grandson of Queen Victoria, who served as a soldier and later as Governor-General of the Union of South Africa.
- 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: John of Cornwall Target entity description: John of Cornwall was a 13th-century English nobleman, the son of Richard, 1st Earl of Cornwall, and a member of the Plantagenet royal family.
-
A.
Richard, 1st Earl of Cornwall
Richard, 1st Earl of Cornwall was a 13th-century English prince, wealthy magnate, and elected King of the Romans who played a significant role in European politics during the reigns of his brother Henry III and beyond.
-
B.
John of Eltham, Earl of Cornwall
John of Eltham, Earl of Cornwall, was a 14th-century English prince, the second son of King Edward II and Isabella of France, who played a notable military role in the early stages of the Hundred Years’ War before his early death.
-
C.
Prince Arthur, Duke of Brittany
Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
-
D.
Nicholas of Guildford
Nicholas of Guildford is a medieval English writer believed by some scholars to be the author of the Middle English debate poem *The Owl and the Nightingale*.
-
E.
Prince Arthur of Connaught
Prince Arthur of Connaught was a British royal prince, grandson of Queen Victoria, who served as a soldier and later as Governor-General of the Union of South Africa.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
English nobleman
ⓘ
medieval noble ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| ethnicGroup | English ⓘ |
| familyName |
Plantagenet
ⓘ
linked to:
House of Plantagenet
|
| father | Richard, 1st Earl of Cornwall ⓘ |
| gender | male ⓘ |
| givenName | John ⓘ |
| languageSpoken |
Anglo-Norman
ⓘ
Middle English ⓘ |
| memberOf |
Plantagenet dynasty
ⓘ
linked to:
House of Plantagenet
|
| nobleFamily |
Plantagenet
ⓘ
linked to:
House of Plantagenet
|
| nobleTitle | Lord ⓘ |
| occupation | nobleman ⓘ |
| placeOfOrigin | Cornwall ⓘ |
| relative |
Edward I of England
ⓘ
Henry III of England ⓘ |
| royalHouse | House of Plantagenet ⓘ |
| socialClass | nobility ⓘ |
| timePeriod | 13th century ⓘ |
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: John of Cornwall Description of subject: John of Cornwall was a 13th-century English nobleman, the son of Richard, 1st Earl of Cornwall, and a member of the Plantagenet royal family.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: John of Cornwall