Isabella of Portugal, Queen of Castile
E440418
Isabella of Portugal, Queen of Castile was a 15th-century Portuguese noblewoman who became queen consort of Castile through her marriage to King John II and was the mother of Isabella I of Castile.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Isabella of Portugal, Queen of Castile canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4304032 — 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: Isabella of Portugal, Queen of Castile Context triple: [Isabella of Aragon, Queen of Portugal, grandparents, Isabella of Portugal, Queen of Castile]
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A.
Isabella of Aragon, Queen of Portugal
Isabella of Aragon, Queen of Portugal was a late 15th-century Spanish infanta who became queen consort of Portugal through her marriage to King Manuel I and played a key role in Iberian dynastic politics.
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B.
Maria of Castile
Maria of Castile was a 15th-century queen consort of Aragon and Naples, noted for governing Aragon as regent during her husband Alfonso V’s long absences in Italy.
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C.
Joanna of Castile
Joanna of Castile, also known as Joanna the Mad, was a queen of Castile and Aragon whose reign marked the dynastic union that led to a unified Spain, though she spent much of her life confined due to alleged mental illness.
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D.
Maria of Aragon, Queen of Portugal
Maria of Aragon, Queen of Portugal, was a Spanish infanta of the Catholic Monarchs who became queen consort of Portugal through her marriage to King Manuel I and played a key dynastic role in strengthening Iberian alliances in the early 16th century.
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E.
Isabella of Portugal
Isabella of Portugal was a 16th-century Holy Roman Empress and Queen consort of Spain, noted for her political influence and role in governing the Spanish Empire during the reign of her husband, Emperor Charles V.
- 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: Isabella of Portugal, Queen of Castile Target entity description: Isabella of Portugal, Queen of Castile was a 15th-century Portuguese noblewoman who became queen consort of Castile through her marriage to King John II and was the mother of Isabella I of Castile.
-
A.
Isabella of Aragon, Queen of Portugal
Isabella of Aragon, Queen of Portugal was a late 15th-century Spanish infanta who became queen consort of Portugal through her marriage to King Manuel I and played a key role in Iberian dynastic politics.
-
B.
Maria of Castile
Maria of Castile was a 15th-century queen consort of Aragon and Naples, noted for governing Aragon as regent during her husband Alfonso V’s long absences in Italy.
-
C.
Joanna of Castile
Joanna of Castile, also known as Joanna the Mad, was a queen of Castile and Aragon whose reign marked the dynastic union that led to a unified Spain, though she spent much of her life confined due to alleged mental illness.
-
D.
Maria of Aragon, Queen of Portugal
Maria of Aragon, Queen of Portugal, was a Spanish infanta of the Catholic Monarchs who became queen consort of Portugal through her marriage to King Manuel I and played a key dynastic role in strengthening Iberian alliances in the early 16th century.
-
E.
Isabella of Portugal
Isabella of Portugal was a 16th-century Holy Roman Empress and Queen consort of Spain, noted for her political influence and role in governing the Spanish Empire during the reign of her husband, Emperor Charles V.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
15th-century person
ⓘ
Portuguese person ⓘ noblewoman ⓘ queen consort ⓘ |
| birthPlace |
Kingdom of Portugal
NERFINISHED
ⓘ
Évora NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of Portugal NERFINISHED ⓘ |
| deathPlace |
Arévalo
NERFINISHED
ⓘ
Crown of Castile NERFINISHED ⓘ |
| father | Infante John, Lord of Reguengos de Monsaraz NERFINISHED ⓘ |
| floruit | 15th century ⓘ |
| givenName | Isabella NERFINISHED ⓘ |
| languageSpoken |
Castilian
ⓘ
Portuguese ⓘ |
| memberOf | House of Aviz NERFINISHED ⓘ |
| mother | Isabella of Barcelos NERFINISHED ⓘ |
| motherOf |
Alfonso, Prince of Asturias
NERFINISHED
ⓘ
Infanta Maria of Castile NERFINISHED ⓘ Isabella I of Castile NERFINISHED ⓘ |
| nobleFamily | House of Aviz NERFINISHED ⓘ |
| notableWork | Mother of Isabella I of Castile ⓘ |
| positionHeld | Queen consort of Castile ⓘ |
| religion | Roman Catholicism ⓘ |
| residence |
Arévalo
NERFINISHED
ⓘ
Castile NERFINISHED ⓘ |
| sexOrGender | female ⓘ |
| spouse |
John II of Castile
NERFINISHED
ⓘ
John II of Castile, King of Castile NERFINISHED ⓘ |
| spouseTitle |
John II of Castile
NERFINISHED
ⓘ
King of Castile NERFINISHED ⓘ |
| title |
Queen consort of Castile
ⓘ
Queen consort of León ⓘ |
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: Isabella of Portugal, Queen of Castile Description of subject: Isabella of Portugal, Queen of Castile was a 15th-century Portuguese noblewoman who became queen consort of Castile through her marriage to King John II and was the mother of Isabella I of Castile.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.