Ilbert de Lacy
E511727
Ilbert de Lacy was an 11th-century Norman baron and landholder in England, noted as a prominent supporter of William the Conqueror and an early feudal lord in Yorkshire.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ilbert de Lacy canonical | 2 |
| Robert de Lacy | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5337799 — 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: Ilbert de Lacy Context triple: [Pontefract Castle, builtBy, Ilbert de Lacy]
-
A.
Philippe De Lacy
Philippe De Lacy was a French-born American child actor of the silent film era who appeared in numerous 1920s Hollywood productions.
-
B.
William d'Aubigny
William d'Aubigny was a 13th-century English nobleman and rebel baron who played a prominent role in the conflicts against King John, including the events surrounding the siege of Rochester Castle.
-
C.
Edward de Bohun
Edward de Bohun was an early 14th-century English nobleman of the influential de Bohun family, notable as a grandson of King Edward I through his mother, Elizabeth of Rhuddlan.
-
D.
Robert de Clifford
Robert de Clifford was a prominent medieval English nobleman and soldier, notably the 1st Baron de Clifford and Lord Warden of the Marches under King Edward I.
-
E.
Gilbert de Clare, Earl of Gloucester
Gilbert de Clare, Earl of Gloucester, was a powerful 13th-century English nobleman and military leader who played a pivotal role in the conflicts between the crown and the barons, particularly during the reign of Henry III and Edward I.
- 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: Ilbert de Lacy Target entity description: Ilbert de Lacy was an 11th-century Norman baron and landholder in England, noted as a prominent supporter of William the Conqueror and an early feudal lord in Yorkshire.
-
A.
Philippe De Lacy
Philippe De Lacy was a French-born American child actor of the silent film era who appeared in numerous 1920s Hollywood productions.
-
B.
William d'Aubigny
William d'Aubigny was a 13th-century English nobleman and rebel baron who played a prominent role in the conflicts against King John, including the events surrounding the siege of Rochester Castle.
-
C.
Edward de Bohun
Edward de Bohun was an early 14th-century English nobleman of the influential de Bohun family, notable as a grandson of King Edward I through his mother, Elizabeth of Rhuddlan.
-
D.
Robert de Clifford
Robert de Clifford was a prominent medieval English nobleman and soldier, notably the 1st Baron de Clifford and Lord Warden of the Marches under King Edward I.
-
E.
Gilbert de Clare, Earl of Gloucester
Gilbert de Clare, Earl of Gloucester, was a powerful 13th-century English nobleman and military leader who played a pivotal role in the conflicts between the crown and the barons, particularly during the reign of Henry III and Edward I.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
11th-century person
ⓘ
Norman baron ⓘ feudal lord ⓘ medieval landholder ⓘ |
| allegiance | William I of England NERFINISHED ⓘ |
| associatedWith |
Norman aristocracy in England
ⓘ
Norman rule in northern England ⓘ |
| countryOfActivity | England NERFINISHED ⓘ |
| ethnicity | Norman ⓘ |
| feudalStatus | tenant-in-chief ⓘ |
| governedUnder | feudal system ⓘ |
| heldTitle | baron ⓘ |
| historicalEra | High Middle Ages NERFINISHED ⓘ |
| landholdingsLocation |
England
NERFINISHED
ⓘ
Yorkshire NERFINISHED ⓘ |
| languageOfUse | Norman French NERFINISHED ⓘ |
| notableFor |
being an early feudal lord in Yorkshire
ⓘ
supporting William the Conqueror ⓘ |
| occupation |
baron
ⓘ
landholder ⓘ |
| participatedIn | Norman Conquest of England NERFINISHED ⓘ |
| regionOfActivity | Yorkshire NERFINISHED ⓘ |
| socialClass | nobility ⓘ |
| supported | William the Conqueror NERFINISHED ⓘ |
| timePeriod | 11th 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: Ilbert de Lacy Description of subject: Ilbert de Lacy was an 11th-century Norman baron and landholder in England, noted as a prominent supporter of William the Conqueror and an early feudal lord in Yorkshire.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Robert de Lacy
this entity surface form:
Robert de Lacy