John III of Penthièvre
E952144
15th-century French nobleman
French nobleman
claimant to the Duchy of Brittany
member of the House of Penthièvre
nobleman
John III of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany from the House of Penthièvre, involved in the Breton succession disputes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John III of Penthièvre canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11362165 — 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 III of Penthièvre Context triple: [House of Penthièvre, notableMember, John III 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.
-
B.
John II of Penthièvre
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.
-
C.
Alan IV, Duke of Brittany
Alan IV, Duke of Brittany was an 11th–12th century Breton ruler known for his participation in the First Crusade and his role in consolidating ducal authority in Brittany.
-
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.
Geoffrey II, Duke of Brittany
Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
- 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 III of Penthièvre Target entity description: John III of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany from the House of Penthièvre, involved 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.
John II of Penthièvre
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.
-
C.
Alan IV, Duke of Brittany
Alan IV, Duke of Brittany was an 11th–12th century Breton ruler known for his participation in the First Crusade and his role in consolidating ducal authority in Brittany.
-
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.
Geoffrey II, Duke of Brittany
Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
15th-century French nobleman
ⓘ
French nobleman ⓘ claimant to the Duchy of Brittany ⓘ member of the House of Penthièvre ⓘ nobleman ⓘ |
| allegiance | Armagnac faction NERFINISHED ⓘ |
| birthPlace | Brittany NERFINISHED ⓘ |
| centuryOfActivity | 15th century ⓘ |
| country | Kingdom of France NERFINISHED ⓘ |
| deathPlace | Brittany NERFINISHED ⓘ |
| dynasticConflictWith | House of Montfort NERFINISHED ⓘ |
| era | Late Middle Ages ⓘ |
| father | John I of Penthièvre NERFINISHED ⓘ |
| feudalStatus | vassal of the King of France ⓘ |
| gender | male ⓘ |
| grandfather | Charles of Blois NERFINISHED ⓘ |
| grandmother | Joan of Penthièvre, Duchess of Brittany NERFINISHED ⓘ |
| heldClaimsThrough | hereditary rights from Joan of Penthièvre ⓘ |
| houseClaimed | Duchy of Brittany NERFINISHED ⓘ |
| language | French ⓘ |
| mother | Margaret of Clisson NERFINISHED ⓘ |
| nobleFamily |
House of Châtillon
NERFINISHED
ⓘ
House of Penthièvre NERFINISHED ⓘ |
| nobleRank | count ⓘ |
| notableFor |
claim to the Duchy of Brittany
ⓘ
role in Breton succession disputes ⓘ |
| opposedTo | Montfort Dukes of Brittany NERFINISHED ⓘ |
| participatedIn |
Breton War of Succession aftermath
ⓘ
Breton succession disputes ⓘ |
| politicalRole | Breton magnate ⓘ |
| positionHeld | claimant to the Duchy of Brittany ⓘ |
| region | Brittany NERFINISHED ⓘ |
| religion | Roman Catholicism ⓘ |
| sibling | Olivier of Penthièvre NERFINISHED ⓘ |
| socialClass | high nobility ⓘ |
| spouse |
Catherine of Luxembourg-Saint-Pol
NERFINISHED
ⓘ
Joan of Navarre, Countess of Étampes NERFINISHED ⓘ |
| territorialBase | Penthièvre NERFINISHED ⓘ |
| title |
Count of Penthièvre
NERFINISHED
ⓘ
Lord of Avaugour NERFINISHED ⓘ Lord of Châteauneuf NERFINISHED ⓘ Lord of Guingamp NERFINISHED ⓘ Lord of L’Aigle 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: John III of Penthièvre Description of subject: John III of Penthièvre was a 15th-century French nobleman and claimant to the Duchy of Brittany from the House of Penthièvre, involved in the Breton succession disputes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.