Thomas of Lancaster, 1st Duke of Clarence
E340077
Thomas of Lancaster, 1st Duke of Clarence, was an English prince and military commander, the second son of King Henry IV, who played a prominent role in the early stages of the Hundred Years’ War under his brother Henry V.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Thomas of Lancaster, Duke of Clarence | 5 |
| Thomas of Clarence | 1 |
| Thomas of Lancaster, 1st Duke of Clarence canonical | 1 |
| Thomas, Duke of Clarence | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3164869 — 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: Thomas of Lancaster, 1st Duke of Clarence Context triple: [Henry IV of England, child, Thomas of Lancaster, 1st Duke of Clarence]
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A.
Lionel of Antwerp, 1st Duke of Clarence
Lionel of Antwerp, 1st Duke of Clarence, was a 14th-century English prince and nobleman whose lineage played a key role in the later Wars of the Roses through the Yorkist claim to the throne.
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B.
George Plantagenet, 1st Duke of Clarence
George Plantagenet, 1st Duke of Clarence, was a 15th-century English nobleman and Plantagenet prince who played a turbulent role in the Wars of the Roses before being executed for treason under his brother King Edward IV.
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C.
Richard of Shrewsbury, Duke of York
Richard of Shrewsbury, Duke of York was the younger son of King Edward IV of England and one of the two "Princes in the Tower" whose mysterious disappearance has long intrigued historians.
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D.
Duke of Clarence and Avondale
The Duke of Clarence and Avondale was a British royal dukedom most notably held by Prince Albert Victor, the eldest son of the future King Edward VII and a one-time second in line to the throne.
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E.
Edmund of Lancaster
Edmund of Lancaster was a 13th-century English prince, son of King Henry III, who became a powerful nobleman and military leader as Earl of Lancaster and Leicester.
- 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: Thomas of Lancaster, 1st Duke of Clarence Target entity description: Thomas of Lancaster, 1st Duke of Clarence, was an English prince and military commander, the second son of King Henry IV, who played a prominent role in the early stages of the Hundred Years’ War under his brother Henry V.
-
A.
Lionel of Antwerp, 1st Duke of Clarence
Lionel of Antwerp, 1st Duke of Clarence, was a 14th-century English prince and nobleman whose lineage played a key role in the later Wars of the Roses through the Yorkist claim to the throne.
-
B.
George Plantagenet, 1st Duke of Clarence
George Plantagenet, 1st Duke of Clarence, was a 15th-century English nobleman and Plantagenet prince who played a turbulent role in the Wars of the Roses before being executed for treason under his brother King Edward IV.
-
C.
Richard of Shrewsbury, Duke of York
Richard of Shrewsbury, Duke of York was the younger son of King Edward IV of England and one of the two "Princes in the Tower" whose mysterious disappearance has long intrigued historians.
-
D.
Duke of Clarence and Avondale
The Duke of Clarence and Avondale was a British royal dukedom most notably held by Prince Albert Victor, the eldest son of the future King Edward VII and a one-time second in line to the throne.
-
E.
Edmund of Lancaster
Edmund of Lancaster was a 13th-century English prince, son of King Henry III, who became a powerful nobleman and military leader as Earl of Lancaster and Leicester.
- F. None of above. chosen
Statements (51)
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: Thomas of Lancaster, 1st Duke of Clarence Description of subject: Thomas of Lancaster, 1st Duke of Clarence, was an English prince and military commander, the second son of King Henry IV, who played a prominent role in the early stages of the Hundred Years’ War under his brother Henry V.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Henry IV of England
this entity surface form:
Thomas, Duke of Clarence
this entity surface form:
Thomas of Clarence
this entity surface form:
Thomas of Lancaster, Duke of Clarence
this entity surface form:
Thomas of Lancaster, Duke of Clarence
this entity surface form:
Thomas of Lancaster, Duke of Clarence
this entity surface form:
Thomas of Lancaster, Duke of Clarence
this entity surface form:
Thomas of Lancaster, Duke of Clarence