Arthur II of Dreux
E1036003
Arthur II of Dreux was a late 13th- and early 14th-century Duke of Brittany from the House of Dreux, known for his role in the complex feudal politics of medieval France.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Arthur II of Dreux canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12498067 — 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: Arthur II of Dreux Context triple: [Arthur II, Duke of Brittany, fullName, Arthur II of Dreux]
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A.
Robert II of Dreux
Robert II of Dreux was a 12th–13th century French nobleman and crusader from the Capetian royal house who played a significant role in the politics and warfare of the Île-de-France region.
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B.
Robert I of Dreux
Robert I of Dreux was a 12th-century French nobleman and son of King Louis VI of France, who became the first holder of the County of Dreux and founded the cadet branch of the Capetian dynasty known as the House of Dreux.
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C.
Robert IV of Dreux
Robert IV of Dreux was a 13th-century French nobleman from the Capetian House of Dreux who held the title of Count of Dreux and was involved in the political affairs of medieval France.
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D.
Peter of Dreux
Peter of Dreux was a prominent 13th-century French nobleman and military leader from the Capetian House of Dreux, known especially for his role as Duke of Brittany by marriage.
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E.
Theobald of Brittany
Theobald of Brittany was a medieval Breton nobleman, known primarily as a younger son of Duke John I of Brittany and a member of the ducal House of Dreux.
- 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: Arthur II of Dreux Target entity description: Arthur II of Dreux was a late 13th- and early 14th-century Duke of Brittany from the House of Dreux, known for his role in the complex feudal politics of medieval France.
-
A.
Robert II of Dreux
Robert II of Dreux was a 12th–13th century French nobleman and crusader from the Capetian royal house who played a significant role in the politics and warfare of the Île-de-France region.
-
B.
Robert I of Dreux
Robert I of Dreux was a 12th-century French nobleman and son of King Louis VI of France, who became the first holder of the County of Dreux and founded the cadet branch of the Capetian dynasty known as the House of Dreux.
-
C.
Robert IV of Dreux
Robert IV of Dreux was a 13th-century French nobleman from the Capetian House of Dreux who held the title of Count of Dreux and was involved in the political affairs of medieval France.
-
D.
Peter of Dreux
Peter of Dreux was a prominent 13th-century French nobleman and military leader from the Capetian House of Dreux, known especially for his role as Duke of Brittany by marriage.
-
E.
Theobald of Brittany
Theobald of Brittany was a medieval Breton nobleman, known primarily as a younger son of Duke John I of Brittany and a member of the ducal House of Dreux.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Duke of Brittany
ⓘ
French noble ⓘ duke ⓘ human ⓘ member of the House of Dreux ⓘ |
| activeInCentury |
13th century
ⓘ
14th century ⓘ |
| alsoKnownAs | Arthur II, Duke of Brittany NERFINISHED ⓘ |
| birthDate | 1262 ⓘ |
| birthPlace | Vannes NERFINISHED ⓘ |
| burialPlace | Cordeliers Convent, Vannes NERFINISHED ⓘ |
| child |
Alice of Brittany
NERFINISHED
ⓘ
Beatrice of Brittany NERFINISHED ⓘ Blanche of Brittany NERFINISHED ⓘ Guy, Count of Penthièvre NERFINISHED ⓘ Henry of Brittany NERFINISHED ⓘ Joan of Brittany NERFINISHED ⓘ John III, Duke of Brittany NERFINISHED ⓘ Margaret of Brittany NERFINISHED ⓘ Peter of Brittany, Count of Porhoët NERFINISHED ⓘ |
| countryOfCitizenship | Duchy of Brittany NERFINISHED ⓘ |
| deathDate | 1312-08-27 ⓘ |
| deathPlace | Château de l'Isle, near La Roche-Bernard NERFINISHED ⓘ |
| dynasticConnection | Capetian dynasty through the House of Dreux NERFINISHED ⓘ |
| era | Middle Ages ⓘ |
| father | John II, Duke of Brittany NERFINISHED ⓘ |
| feudalAllegiance | Kingdom of France NERFINISHED ⓘ |
| givenName | Arthur NERFINISHED ⓘ |
| grandfather | John I, Duke of Brittany NERFINISHED ⓘ |
| grandmother | Blanche of Navarre, Duchess of Brittany NERFINISHED ⓘ |
| house | House of Dreux NERFINISHED ⓘ |
| maternalGrandfather | Henry III of England NERFINISHED ⓘ |
| maternalGrandmother | Eleanor of Provence NERFINISHED ⓘ |
| mother | Beatrice of England NERFINISHED ⓘ |
| motherTongue | French ⓘ |
| nobleFamily | House of Dreux NERFINISHED ⓘ |
| nobleTitle |
Count of Montfort
NERFINISHED
ⓘ
Duke of Brittany NERFINISHED ⓘ |
| notableFor |
involvement in feudal politics of medieval France
ⓘ
rule over the Duchy of Brittany ⓘ |
| predecessor | John II, Duke of Brittany NERFINISHED ⓘ |
| reignEnd | 1312 ⓘ |
| reignStart | 1305 ⓘ |
| religion | Roman Catholicism ⓘ |
| spouse |
Marie, Viscountess of Limoges
NERFINISHED
ⓘ
Yolande of Dreux, Queen of Scotland NERFINISHED ⓘ |
| successor | John III, Duke of Brittany NERFINISHED ⓘ |
| titleHeld |
Count of Montfort
NERFINISHED
ⓘ
Duke of Brittany NERFINISHED ⓘ |
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: Arthur II of Dreux Description of subject: Arthur II of Dreux was a late 13th- and early 14th-century Duke of Brittany from the House of Dreux, known for his role in the complex feudal politics of medieval France.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.