Edmund Crouchback, 1st Earl of Lancaster
E48107
Earl of Lancaster
English prince
founder of the House of Lancaster
medieval nobleman
member of the House of Plantagenet
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Edmund Crouchback, 1st Earl of Lancaster canonical | 29 |
| Edmund Crouchback | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T375460 — 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: Edmund Crouchback, 1st Earl of Lancaster Context triple: [Henry III of England, child, Edmund Crouchback, 1st Earl of Lancaster]
-
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.
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B.
William d’Aubigny, 1st Earl of Arundel
William d’Aubigny, 1st Earl of Arundel, was a prominent 12th-century Anglo-Norman nobleman and royal courtier who rose to great influence under King Henry I and King Stephen.
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C.
Earl Marshal
The Earl Marshal is a senior hereditary officer of state in England responsible for overseeing heraldry, state ceremonies, and the College of Arms.
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D.
Richard Chancellor
Richard Chancellor was a 16th-century English navigator and explorer who pioneered the sea route to Russia and helped establish early Anglo-Russian trade relations.
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E.
Charles Howard, 1st Earl of Nottingham
Charles Howard, 1st Earl of Nottingham, was an English nobleman and Lord High Admiral who commanded the English fleet against the Spanish Armada in 1588.
- 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: Edmund Crouchback, 1st Earl of Lancaster Target entity description: 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.
-
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.
William d’Aubigny, 1st Earl of Arundel
William d’Aubigny, 1st Earl of Arundel, was a prominent 12th-century Anglo-Norman nobleman and royal courtier who rose to great influence under King Henry I and King Stephen.
-
C.
Earl Marshal
The Earl Marshal is a senior hereditary officer of state in England responsible for overseeing heraldry, state ceremonies, and the College of Arms.
-
D.
Richard Chancellor
Richard Chancellor was a 16th-century English navigator and explorer who pioneered the sea route to Russia and helped establish early Anglo-Russian trade relations.
-
E.
Charles Howard, 1st Earl of Nottingham
Charles Howard, 1st Earl of Nottingham, was an English nobleman and Lord High Admiral who commanded the English fleet against the Spanish Armada in 1588.
- F. None of above. chosen
Statements (48)
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: Edmund Crouchback, 1st Earl of Lancaster Description of subject: 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.
Referenced by (33)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Earl of Lancaster, created 1267
linked to: Edmund Crouchback, 1st Earl of Lancaster
subject linked to:
Earl of Lancaster, created 1267
linked to: Edmund Crouchback, 1st Earl of Lancaster
subject linked to:
Earl of Lancaster, created 1267
linked to: Edmund Crouchback, 1st Earl of Lancaster
subject linked to:
Earl of Lancaster, created 1267
linked to: Edmund Crouchback, 1st Earl of Lancaster
subject linked to:
Mary