John II of Penthièvre
E949783
John II of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany, known for his role in the Breton succession disputes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John II of Penthièvre canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11362164 — 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: John II of Penthièvre Context triple: [House of Penthièvre, notableMember, John II of Penthièvre]
-
A.
John I of Penthièvre
John I of Penthièvre was a 14th-century French nobleman and claimant to the Duchy of Brittany, prominent within the Breton branch of the Capetian dynasty.
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B.
Arthur II, Duke of Brittany
Arthur II, Duke of Brittany was a late 13th- and early 14th-century Breton ruler from the House of Dreux who governed the Duchy of Brittany under French suzerainty and navigated complex feudal and dynastic politics of medieval France.
-
C.
John II, Duke of Brittany
John II, Duke of Brittany was a 13th-century French nobleman who ruled the Duchy of Brittany and played a significant role in the politics of the Capetian kingdom.
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D.
John I, Duke of Brittany
John I, Duke of Brittany was a 13th-century Breton nobleman who ruled the Duchy of Brittany and played a significant role in the politics of medieval France.
-
E.
Richard le Breton
Richard le Breton was a 12th-century knight of King Henry II of England, best known as one of the four assassins who killed Archbishop Thomas Becket in Canterbury Cathedral in 1170.
- 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: John II of Penthièvre Target entity description: John II of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany, known for his role in the Breton succession disputes.
-
A.
John I of Penthièvre
John I of Penthièvre was a 14th-century French nobleman and claimant to the Duchy of Brittany, prominent within the Breton branch of the Capetian dynasty.
-
B.
Arthur II, Duke of Brittany
Arthur II, Duke of Brittany was a late 13th- and early 14th-century Breton ruler from the House of Dreux who governed the Duchy of Brittany under French suzerainty and navigated complex feudal and dynastic politics of medieval France.
-
C.
John II, Duke of Brittany
John II, Duke of Brittany was a 13th-century French nobleman who ruled the Duchy of Brittany and played a significant role in the politics of the Capetian kingdom.
-
D.
John I, Duke of Brittany
John I, Duke of Brittany was a 13th-century Breton nobleman who ruled the Duchy of Brittany and played a significant role in the politics of medieval France.
-
E.
Richard le Breton
Richard le Breton was a 12th-century knight of King Henry II of England, best known as one of the four assassins who killed Archbishop Thomas Becket in Canterbury Cathedral in 1170.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
15th-century nobleman
ⓘ
Breton noble ⓘ French nobleman ⓘ human ⓘ |
| allegiance | King of France ⓘ |
| areaOfInfluence |
Brittany
ⓘ
Penthièvre ⓘ |
| aristocraticTitle | count ⓘ |
| conflict | Breton succession disputes ⓘ |
| countryOfCitizenship | Kingdom of France ⓘ |
| ethnicGroup | Breton ⓘ |
| gender | male ⓘ |
| givenName | John ⓘ |
| historicalRole | feudal lord in Brittany ⓘ |
| involvedIn | disputes over the ducal succession of Brittany ⓘ |
| languageSpoken |
Breton
ⓘ
French ⓘ |
| name | John II of Penthièvre ⓘ |
| nobleFamily |
House of Châtillon
ⓘ
House of Penthièvre ⓘ |
| nobleTitle | Count of Penthièvre ⓘ |
| notableFor | role in the Breton succession disputes ⓘ |
| partOf | Breton War of Succession legacy ⓘ |
| politicalAlignment | French crown ⓘ |
| positionHeld | claimant to the Duchy of Brittany ⓘ |
| realm | Duchy of Brittany ⓘ |
| region |
Brittany
ⓘ
France ⓘ |
| socialClass | high nobility ⓘ |
| timePeriod | 15th 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: John II of Penthièvre Description of subject: John II of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany, known for his role in the Breton succession disputes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.