Peter II, Duke of Brittany
E297722
Peter II, Duke of Brittany was a 15th-century French nobleman who ruled the Duchy of Brittany during a period of political tension between the French crown and regional powers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Peter II, Duke of Brittany canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T2457927 — 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: Peter II, Duke of Brittany Context triple: [Duke of Brittany, officeHolder, Peter II, Duke of Brittany]
-
A.
Peter I, Duke of Brittany
Peter I, Duke of Brittany was a 13th-century French nobleman who became Duke of Brittany through marriage and played a key role in the region’s integration into the French crown’s sphere of influence.
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B.
John III, Duke of Brittany
John III, Duke of Brittany was a 14th-century Breton ruler whose childless reign and succession disputes helped trigger the Breton War of Succession.
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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 IV, Duke of Brittany
John IV, Duke of Brittany was a 14th-century Breton nobleman whose turbulent reign was marked by the Breton War of Succession and complex alliances with both England and France during the Hundred Years’ War.
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E.
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.
- 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: Peter II, Duke of Brittany Target entity description: Peter II, Duke of Brittany was a 15th-century French nobleman who ruled the Duchy of Brittany during a period of political tension between the French crown and regional powers.
-
A.
Peter I, Duke of Brittany
Peter I, Duke of Brittany was a 13th-century French nobleman who became Duke of Brittany through marriage and played a key role in the region’s integration into the French crown’s sphere of influence.
-
B.
John III, Duke of Brittany
John III, Duke of Brittany was a 14th-century Breton ruler whose childless reign and succession disputes helped trigger the Breton War of Succession.
-
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 IV, Duke of Brittany
John IV, Duke of Brittany was a 14th-century Breton nobleman whose turbulent reign was marked by the Breton War of Succession and complex alliances with both England and France during the Hundred Years’ War.
-
E.
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.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Duke of Brittany
ⓘ
French nobleman ⓘ duke ⓘ human ⓘ |
| burialPlace |
Cathédrale Saint-Pierre-et-Saint-Paul de Nantes
ⓘ
surface form:
Nantes Cathedral
|
| conflict | political tensions between the French crown and regional powers ⓘ |
| countryOfCitizenship | Kingdom of France ⓘ |
| dateOfBirth | 1418-07-07 ⓘ |
| dateOfDeath | 1457-09-22 ⓘ |
| era | 15th century ⓘ |
| father | John V, Duke of Brittany ⓘ |
| givenName | Peter ⓘ |
| memberOf | House of Montfort ⓘ |
| mother | Joan of Valois, Duchess of Brittany ⓘ |
| nobleFamily | House of Montfort ⓘ |
| nobleTitle | Duke of Brittany ⓘ |
| placeOfBirth | Nantes ⓘ |
| placeOfDeath | Nantes ⓘ |
| positionHeld | Duke of Brittany ⓘ |
| predecessor | Francis I, Duke of Brittany ⓘ |
| reignEnd | 1457 ⓘ |
| reignStart | 1450 ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Roman Catholic Church
|
| residence | Duchy of Brittany ⓘ |
| ruled | Duchy of Brittany ⓘ |
| sexOrGender | male ⓘ |
| sibling | Francis I, Duke of Brittany ⓘ |
| spouse | Françoise d’Amboise ⓘ |
| successor | Arthur III, Duke of Brittany ⓘ |
| title |
Guingamp
ⓘ
surface form:
Count of Guingamp
|
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: Peter II, Duke of Brittany Description of subject: Peter II, Duke of Brittany was a 15th-century French nobleman who ruled the Duchy of Brittany during a period of political tension between the French crown and regional powers.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.