John of Portugal (son of Peter I and Inês de Castro)
E557360
John of Portugal was an illegitimate 14th-century Portuguese infante, son of King Peter I and Inês de Castro, whose contested status played a role in the dynastic struggles of medieval Portugal.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John of Portugal (son of Peter I and Inês de Castro) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5889042 — 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 of Portugal (son of Peter I and Inês de Castro) Context triple: [Inês de Castro, child, John of Portugal (son of Peter I and Inês de Castro)]
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A.
Afonso of Portugal (son of Peter I and Inês de Castro)
Afonso of Portugal was an infante (prince) of 14th-century Portugal, notable primarily as the posthumously recognized son of King Peter I and his tragic lover-queen Inês de Castro.
-
B.
Infante John, Duke of Viseu
Infante John, Duke of Viseu was a 15th-century Portuguese prince of the Avis dynasty who held several prominent noble titles and played a key role in the politics of late medieval Portugal.
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C.
Infante Peter of Portugal
Infante Peter of Portugal was an 18th-century Portuguese prince of the House of Braganza, notable as a younger son of King John V and a prominent member of the royal family.
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D.
John Manuel, Prince of Portugal
John Manuel, Prince of Portugal was a 16th-century Portuguese infante and heir apparent to the throne whose early death prevented him from becoming king.
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E.
Infante Duarte, Duke of Guimarães
Infante Duarte, Duke of Guimarães, was a 16th-century Portuguese infante of the House of Aviz and a prominent nobleman closely connected to the royal succession.
- 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 of Portugal (son of Peter I and Inês de Castro) Target entity description: John of Portugal was an illegitimate 14th-century Portuguese infante, son of King Peter I and Inês de Castro, whose contested status played a role in the dynastic struggles of medieval Portugal.
-
A.
Afonso of Portugal (son of Peter I and Inês de Castro)
Afonso of Portugal was an infante (prince) of 14th-century Portugal, notable primarily as the posthumously recognized son of King Peter I and his tragic lover-queen Inês de Castro.
-
B.
Infante John, Duke of Viseu
Infante John, Duke of Viseu was a 15th-century Portuguese prince of the Avis dynasty who held several prominent noble titles and played a key role in the politics of late medieval Portugal.
-
C.
Infante Peter of Portugal
Infante Peter of Portugal was an 18th-century Portuguese prince of the House of Braganza, notable as a younger son of King John V and a prominent member of the royal family.
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D.
John Manuel, Prince of Portugal
John Manuel, Prince of Portugal was a 16th-century Portuguese infante and heir apparent to the throne whose early death prevented him from becoming king.
-
E.
Infante Duarte, Duke of Guimarães
Infante Duarte, Duke of Guimarães, was a 16th-century Portuguese infante of the House of Aviz and a prominent nobleman closely connected to the royal succession.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
14th-century Portuguese noble
ⓘ
Portuguese infante ⓘ illegitimate royal child ⓘ |
| associatedWith | Inês de Castro affair NERFINISHED ⓘ |
| birthPlace | Kingdom of Portugal NERFINISHED ⓘ |
| century | 14th century ⓘ |
| country | Kingdom of Portugal NERFINISHED ⓘ |
| dynasty | Portuguese House of Burgundy NERFINISHED ⓘ |
| era |
reign of Ferdinand I of Portugal
ⓘ
reign of Peter I of Portugal ⓘ |
| father | Peter I of Portugal NERFINISHED ⓘ |
| halfSibling |
Ferdinand I of Portugal
NERFINISHED
ⓘ
John I of Portugal NERFINISHED ⓘ |
| historicalPeriod | Middle Ages NERFINISHED ⓘ |
| house | House of Burgundy (Portugal) NERFINISHED ⓘ |
| language | Portuguese ⓘ |
| legitimacyStatus | illegitimate ⓘ |
| mother | Inês de Castro NERFINISHED ⓘ |
| nobleRank | prince ⓘ |
| nobleTitle | Infante of Portugal ⓘ |
| notableFor |
being a son of Peter I of Portugal and Inês de Castro
ⓘ
contested status in succession politics of Portugal ⓘ |
| parentalRelationship |
son of a reigning king of Portugal
ⓘ
son of a royal mistress later recognized as queen posthumously ⓘ |
| playedRoleIn | Portuguese dynastic disputes ⓘ |
| politicalStatus | disputed dynastic claimant ⓘ |
| religion | Roman Catholicism ⓘ |
| sibling |
Afonso (son of Peter I and Constanza Manuel)
NERFINISHED
ⓘ
Afonso of Portugal (son of Peter I and Inês de Castro) NERFINISHED ⓘ Beatrice of Portugal (daughter of Peter I and Inês de Castro) NERFINISHED ⓘ Denis of Portugal (son of Peter I and Inês de Castro) 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 of Portugal (son of Peter I and Inês de Castro) Description of subject: John of Portugal was an illegitimate 14th-century Portuguese infante, son of King Peter I and Inês de Castro, whose contested status played a role in the dynastic struggles of medieval Portugal.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.