William Longsword
E129321
William Longsword was a 10th-century Norman ruler who succeeded his father Rollo as the second Duke of Normandy and helped consolidate Norman power in northern France.
All labels observed (2)
| Label | Occurrences |
|---|---|
| William Longsword canonical | 4 |
| William I Longsword | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T965583 — 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: William Longsword Context triple: [Rollo, child, William Longsword]
-
A.
Robert I, Duke of Normandy
Robert I, Duke of Normandy was an early 11th-century Norman ruler best known as the father of William the Conqueror and for his pious pilgrimage to the Holy Land, during which he died.
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B.
Hugh of Vermandois
Hugh of Vermandois was a French nobleman and younger brother of King Philip I of France who served as one of the prominent princely leaders during the First Crusade.
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C.
Duke of Normandy
The Duke of Normandy is the feudal title held by the British monarch in respect of the Channel Islands, reflecting their historic status separate from the United Kingdom.
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D.
Geoffrey II, Duke of Brittany
Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
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E.
Robert Curthose
Robert Curthose was the eldest son of William the Conqueror, who became Duke of Normandy and played a key role in the politics and warfare of late 11th- and early 12th-century Western Europe.
- 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: William Longsword Target entity description: William Longsword was a 10th-century Norman ruler who succeeded his father Rollo as the second Duke of Normandy and helped consolidate Norman power in northern France.
-
A.
Robert I, Duke of Normandy
Robert I, Duke of Normandy was an early 11th-century Norman ruler best known as the father of William the Conqueror and for his pious pilgrimage to the Holy Land, during which he died.
-
B.
Hugh of Vermandois
Hugh of Vermandois was a French nobleman and younger brother of King Philip I of France who served as one of the prominent princely leaders during the First Crusade.
-
C.
Duke of Normandy
The Duke of Normandy is the feudal title held by the British monarch in respect of the Channel Islands, reflecting their historic status separate from the United Kingdom.
-
D.
Geoffrey II, Duke of Brittany
Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
-
E.
Robert Curthose
Robert Curthose was the eldest son of William the Conqueror, who became Duke of Normandy and played a key role in the politics and warfare of late 11th- and early 12th-century Western Europe.
- 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: William Longsword Description of subject: William Longsword was a 10th-century Norman ruler who succeeded his father Rollo as the second Duke of Normandy and helped consolidate Norman power in northern France.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.