Guy of Brittany, Count of Penthièvre
E1025846
Guy of Brittany, Count of Penthièvre, was a 14th-century Breton nobleman from the ducal House of Brittany who held the important lordship of Penthièvre during the late Middle Ages.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Guy of Brittany, Count of Penthièvre canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11925592 — 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: Guy of Brittany, Count of Penthièvre Context triple: [John III, Duke of Brittany, sibling, Guy of Brittany, Count of Penthièvre]
-
A.
Peter of Brittany
Peter of Brittany was a medieval French nobleman and member of the ducal family of Brittany, known primarily as a younger son of Duke John I.
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B.
John III of Penthièvre
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.
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C.
Hoël II, Duke of Brittany
Hoël II, Duke of Brittany was an 11th-century Breton nobleman who ruled as Duke of Brittany and Count of Nantes, playing a key role in consolidating ducal authority in the region.
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D.
Prince Arthur, Duke of Brittany
Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
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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: Guy of Brittany, Count of Penthièvre Target entity description: Guy of Brittany, Count of Penthièvre, was a 14th-century Breton nobleman from the ducal House of Brittany who held the important lordship of Penthièvre during the late Middle Ages.
-
A.
Peter of Brittany
Peter of Brittany was a medieval French nobleman and member of the ducal family of Brittany, known primarily as a younger son of Duke John I.
-
B.
John III of Penthièvre
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.
-
C.
Hoël II, Duke of Brittany
Hoël II, Duke of Brittany was an 11th-century Breton nobleman who ruled as Duke of Brittany and Count of Nantes, playing a key role in consolidating ducal authority in the region.
-
D.
Prince Arthur, Duke of Brittany
Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
-
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 (46)
| Predicate | Object |
|---|---|
| instanceOf |
Breton nobleman
ⓘ
count ⓘ lord ⓘ medieval noble ⓘ member of nobility ⓘ nobleman ⓘ |
| allegiance |
Duke of Brittany
NERFINISHED
ⓘ
King of France ⓘ |
| aristocraticStatus | hereditary lord ⓘ |
| aristocraticTitleScope | Brittany NERFINISHED ⓘ |
| associatedWith |
County of Penthièvre
NERFINISHED
ⓘ
Ducal House of Brittany NERFINISHED ⓘ |
| countryOfCitizenship |
Duchy of Brittany
NERFINISHED
ⓘ
Kingdom of France NERFINISHED ⓘ |
| deathPlace | Brittany (probable) NERFINISHED ⓘ |
| era | late Middle Ages ⓘ |
| ethnicGroup | Breton ⓘ |
| feudalRank | vassal of the Duke of Brittany ⓘ |
| feudalSystem |
Breton feudal system
ⓘ
French feudal system ⓘ |
| feudalTitleJurisdiction | County of Penthièvre NERFINISHED ⓘ |
| floruit | 14th century ⓘ |
| gender | male ⓘ |
| governedTerritory | County of Penthièvre NERFINISHED ⓘ |
| historicalContext | late medieval Brittany ⓘ |
| historicalRegion | Armorica NERFINISHED ⓘ |
| house | House of Brittany NERFINISHED ⓘ |
| languageOfCulture |
Breton
ⓘ
French ⓘ |
| lifeInCentury | 14th century ⓘ |
| lordOf | Penthièvre NERFINISHED ⓘ |
| nobleFamily | House of Brittany NERFINISHED ⓘ |
| nobleRank | count ⓘ |
| notableFor |
holding the lordship of Penthièvre in the 14th century
ⓘ
membership in the ducal House of Brittany ⓘ |
| partOf |
Breton aristocracy
ⓘ
medieval French nobility ⓘ |
| positionHeld |
Count of Penthièvre
NERFINISHED
ⓘ
feudal lord ⓘ |
| realm | Penthièvre NERFINISHED ⓘ |
| region |
Brittany
NERFINISHED
ⓘ
western France ⓘ |
| socialClass | high nobility ⓘ |
| timePeriod | 14th century ⓘ |
| title |
Count of Penthièvre
NERFINISHED
ⓘ
Lord of Penthièvre 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: Guy of Brittany, Count of Penthièvre Description of subject: Guy of Brittany, Count of Penthièvre, was a 14th-century Breton nobleman from the ducal House of Brittany who held the important lordship of Penthièvre during the late Middle Ages.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.