Infante João, Hereditary Prince of Portugal
E626475
Infante João, Hereditary Prince of Portugal, was the eldest son and designated successor of King Afonso V whose early death prevented him from ascending the Portuguese throne.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Infante John of Portugal | 1 |
| Infante João, Hereditary Prince of Portugal canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6728454 — 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: Infante João, Hereditary Prince of Portugal Context triple: [Afonso V of Portugal, child, Infante João, Hereditary Prince of Portugal]
-
A.
Infante João, Duke of Beja
Infante João, Duke of Beja was a 19th-century Portuguese prince, the younger son of Queen Maria II and King Ferdinand II, and a member of the House of Braganza.
-
B.
Prince Royal of Portugal
The Prince Royal of Portugal was the traditional title given to the heir apparent to the Portuguese throne, signifying the next in line to become monarch.
-
C.
Infante Carlos of Portugal
Infante Carlos of Portugal was a Portuguese prince of the House of Braganza, best known as the younger brother of King Joseph I of Portugal.
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D.
Prince Duarte of Portugal
Prince Duarte of Portugal was a Portuguese infante and military leader from the House of Aviz, notable for his role in early 15th-century North African campaigns that marked the beginning of Portugal’s overseas expansion.
-
E.
Infante Afonso, Duke of Porto
Infante Afonso, Duke of Porto was a Portuguese prince of the House of Braganza and younger son of King Luís I, known for his military career and role in the final years of the Portuguese monarchy.
- 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: Infante João, Hereditary Prince of Portugal Target entity description: Infante João, Hereditary Prince of Portugal, was the eldest son and designated successor of King Afonso V whose early death prevented him from ascending the Portuguese throne.
-
A.
Infante João, Duke of Beja
Infante João, Duke of Beja was a 19th-century Portuguese prince, the younger son of Queen Maria II and King Ferdinand II, and a member of the House of Braganza.
-
B.
Prince Royal of Portugal
The Prince Royal of Portugal was the traditional title given to the heir apparent to the Portuguese throne, signifying the next in line to become monarch.
-
C.
Infante Carlos of Portugal
Infante Carlos of Portugal was a Portuguese prince of the House of Braganza, best known as the younger brother of King Joseph I of Portugal.
-
D.
Prince Duarte of Portugal
Prince Duarte of Portugal was a Portuguese infante and military leader from the House of Aviz, notable for his role in early 15th-century North African campaigns that marked the beginning of Portugal’s overseas expansion.
-
E.
Infante Afonso, Duke of Porto
Infante Afonso, Duke of Porto was a Portuguese prince of the House of Braganza and younger son of King Luís I, known for his military career and role in the final years of the Portuguese monarchy.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
Portuguese infante
ⓘ
heir apparent ⓘ hereditary prince ⓘ |
| birthDate | 1451-01-29 ⓘ |
| birthPlace |
Kingdom of Portugal
NERFINISHED
ⓘ
Lisbon NERFINISHED ⓘ |
| causeOfDeath | childbirth complications ⓘ |
| country | Kingdom of Portugal NERFINISHED ⓘ |
| deathDate | 1451-01-29 ⓘ |
| deathPlace |
Kingdom of Portugal
NERFINISHED
ⓘ
Lisbon NERFINISHED ⓘ |
| father | Afonso V of Portugal NERFINISHED ⓘ |
| gender | male ⓘ |
| givenName | João NERFINISHED ⓘ |
| heirTo | throne of Portugal ⓘ |
| memberOf | House of Aviz NERFINISHED ⓘ |
| monarchFather | Afonso V of Portugal NERFINISHED ⓘ |
| mother | Isabel of Coimbra NERFINISHED ⓘ |
| nobleFamily | Aviz dynasty NERFINISHED ⓘ |
| positionHeld | Hereditary Prince of Portugal NERFINISHED ⓘ |
| religion | Roman Catholicism ⓘ |
| shortDescription | eldest son and designated successor of King Afonso V of Portugal whose early death prevented him from ascending the throne ⓘ |
| sibling |
Infanta Joanna of Portugal
NERFINISHED
ⓘ
John II of Portugal NERFINISHED ⓘ |
| spouse | Joanna la Beltraneja NERFINISHED ⓘ |
| title | Hereditary Prince of Portugal 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: Infante João, Hereditary Prince of Portugal Description of subject: Infante João, Hereditary Prince of Portugal, was the eldest son and designated successor of King Afonso V whose early death prevented him from ascending the Portuguese throne.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Infante John of Portugal