John II of Castile
E52970
John II of Castile was a 15th-century king whose long but politically weak reign was dominated by powerful nobles and favorites, notably Álvaro de Luna, during a turbulent period in Iberian history.
All labels observed (2)
| Label | Occurrences |
|---|---|
| John II of Castile canonical | 17 |
| John II, King of Castile and León | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T376250 — 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 II of Castile Context triple: [Crown of Castile, monarch, John II of Castile]
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A.
Henry IV of Castile
Henry IV of Castile was a 15th-century king whose troubled reign was marked by political instability, noble revolts, and disputes over the succession that paved the way for the rise of the Catholic Monarchs.
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B.
Ferdinand II of Aragon
Ferdinand II of Aragon was a late 15th- and early 16th-century Catholic monarch of Spain who, alongside Isabella I of Castile, completed the Reconquista and laid the foundations of a unified Spanish kingdom and overseas empire.
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C.
Alfonso X of Castile
Alfonso X of Castile, known as "El Sabio" ("the Wise"), was a 13th-century king renowned for his legal, scientific, and literary patronage that helped shape medieval Iberian culture.
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D.
Philip I of Castile
Philip I of Castile, also known as Philip the Handsome, was a Habsburg archduke of Burgundy who briefly became king of Castile through his marriage to Joanna of Castile, helping establish Habsburg rule in Spain.
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E.
Louis I of Spain
Louis I of Spain was a short-reigning early 18th-century Bourbon king who briefly ruled Spain in 1724 before dying of smallpox at age seventeen.
- 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 II of Castile Target entity description: John II of Castile was a 15th-century king whose long but politically weak reign was dominated by powerful nobles and favorites, notably Álvaro de Luna, during a turbulent period in Iberian history.
-
A.
Henry IV of Castile
Henry IV of Castile was a 15th-century king whose troubled reign was marked by political instability, noble revolts, and disputes over the succession that paved the way for the rise of the Catholic Monarchs.
-
B.
Ferdinand II of Aragon
Ferdinand II of Aragon was a late 15th- and early 16th-century Catholic monarch of Spain who, alongside Isabella I of Castile, completed the Reconquista and laid the foundations of a unified Spanish kingdom and overseas empire.
-
C.
Alfonso X of Castile
Alfonso X of Castile, known as "El Sabio" ("the Wise"), was a 13th-century king renowned for his legal, scientific, and literary patronage that helped shape medieval Iberian culture.
-
D.
Philip I of Castile
Philip I of Castile, also known as Philip the Handsome, was a Habsburg archduke of Burgundy who briefly became king of Castile through his marriage to Joanna of Castile, helping establish Habsburg rule in Spain.
-
E.
Louis I of Spain
Louis I of Spain was a short-reigning early 18th-century Bourbon king who briefly ruled Spain in 1724 before dying of smallpox at age seventeen.
- F. None of above. chosen
Statements (47)
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 II of Castile Description of subject: John II of Castile was a 15th-century king whose long but politically weak reign was dominated by powerful nobles and favorites, notably Álvaro de Luna, during a turbulent period in Iberian history.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
John II, King of Castile and León