de Montfort
E264160
De Montfort is a medieval French noble family name most famously associated with Simon de Montfort, a key figure in 13th-century English politics and the development of parliamentary government.
All labels observed (2)
| Label | Occurrences |
|---|---|
| de Montfort canonical | 8 |
| de Montfort family | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2390873 — 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: de Montfort Context triple: [Simon de Montfort, 6th Earl of Leicester, familyName, de Montfort]
-
A.
Amaury de Montfort
Amaury de Montfort was a 13th-century French nobleman and cleric from the influential Montfort family, known for his roles within the Church and his connection to English royalty through his mother, Eleanor of England.
-
B.
Richard de Montfort
Richard de Montfort was a medieval nobleman of the Montfort family, notable as a descendant of English royalty through his mother Eleanor of England, Countess of Pembroke.
-
C.
Roger de Montgomery
Roger de Montgomery was an 11th-century Norman nobleman and close ally of William the Conqueror who became Earl of Shrewsbury and a major landholder in post-Conquest England.
-
D.
Amaury VI of Montfort
Amaury VI of Montfort was a 13th-century French nobleman and crusader from the influential Montfort family, noted for his roles in both European and Levantine politics.
-
E.
Fulk V of Anjou
Fulk V of Anjou was a 12th-century French nobleman who became King of Jerusalem and founder of the Angevin royal line that later ruled England.
- 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: de Montfort Target entity description: De Montfort is a medieval French noble family name most famously associated with Simon de Montfort, a key figure in 13th-century English politics and the development of parliamentary government.
-
A.
Amaury de Montfort
Amaury de Montfort was a 13th-century French nobleman and cleric from the influential Montfort family, known for his roles within the Church and his connection to English royalty through his mother, Eleanor of England.
-
B.
Richard de Montfort
Richard de Montfort was a medieval nobleman of the Montfort family, notable as a descendant of English royalty through his mother Eleanor of England, Countess of Pembroke.
-
C.
Roger de Montgomery
Roger de Montgomery was an 11th-century Norman nobleman and close ally of William the Conqueror who became Earl of Shrewsbury and a major landholder in post-Conquest England.
-
D.
Amaury VI of Montfort
Amaury VI of Montfort was a 13th-century French nobleman and crusader from the influential Montfort family, noted for his roles in both European and Levantine politics.
-
E.
Fulk V of Anjou
Fulk V of Anjou was a 12th-century French nobleman who became King of Jerusalem and founder of the Angevin royal line that later ruled England.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
French noble family
ⓘ
noble family ⓘ |
| associatedWithCountry |
Kingdom of England
ⓘ
Kingdom of France ⓘ |
| associatedWithTerritory |
Leicestershire
ⓘ
surface form:
County of Leicester
Montfort-l'Amaury, France ⓘ
surface form:
Montfort-l'Amaury
|
| countryOfOrigin | France ⓘ |
| etymology | from Old French 'mont' (mountain) and 'fort' (strong, fort) ⓘ |
| familyNameDerivedFrom |
Montfort-l'Amaury, France
ⓘ
surface form:
Montfort-l'Amaury
|
| familyNameForm | toponymic surname ⓘ |
| feudalStatus | feudal lords ⓘ |
| hasFamilyName | de Montfort self-link ⓘ |
| historicalPeriod | Middle Ages ⓘ |
| historicalSignificance | influence on early English parliamentary institutions ⓘ |
| knownFor |
association with development of parliamentary government in England
ⓘ
role in 13th-century English politics ⓘ |
| languageOfFamilyName | French ⓘ |
| nobleFamilyType | medieval noble family ⓘ |
| notableMember |
Amaury de Montfort
ⓘ
Guy de Montfort ⓘ Simon IV de Montfort ⓘ Simon de Montfort, 6th Earl of Leicester ⓘ
surface form:
Simon de Montfort, 5th Earl of Leicester
Simon de Montfort, 6th Earl of Leicester ⓘ |
| politicalRole | baronial leadership in England ⓘ |
| region |
Île-de-France region
ⓘ
surface form:
Île-de-France
|
| religion | Roman Catholicism ⓘ |
| socialClass | nobility ⓘ |
| timeOfProminence |
12th century
ⓘ
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: de Montfort Description of subject: De Montfort is a medieval French noble family name most famously associated with Simon de Montfort, a key figure in 13th-century English politics and the development of parliamentary government.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
de Montfort family