John I of Castile
E478202
John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
All labels observed (3)
| Label | Occurrences |
|---|---|
| John I of Castile canonical | 24 |
| Juan I of Castile | 1 |
| Juan de Trastámara | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4083454 — 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 I of Castile Context triple: [Prince of Asturias, foundedBy, John I of Castile]
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A.
John II of Castile
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.
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B.
Henry III of Castile
Henry III of Castile was a late 14th- and early 15th-century king of Castile and León known for consolidating royal authority, curbing noble power, and strengthening the monarchy’s finances and foreign alliances.
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C.
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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D.
Henry II of Castile
Henry II of Castile was a 14th-century king who seized the Castilian throne after a civil war against his half-brother Peter I and became the first monarch of the Trastámara dynasty.
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E.
Alfonso, King of Castile
"Alfonso, King of Castile" is a historical tragedy by Matthew Gregory Lewis that dramatizes the turbulent reign and personal conflicts of a medieval Castilian monarch.
- 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 I of Castile Target entity description: John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
-
A.
John II of Castile
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.
-
B.
Henry III of Castile
Henry III of Castile was a late 14th- and early 15th-century king of Castile and León known for consolidating royal authority, curbing noble power, and strengthening the monarchy’s finances and foreign alliances.
-
C.
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.
-
D.
Henry II of Castile
Henry II of Castile was a 14th-century king who seized the Castilian throne after a civil war against his half-brother Peter I and became the first monarch of the Trastámara dynasty.
-
E.
Alfonso, King of Castile
"Alfonso, King of Castile" is a historical tragedy by Matthew Gregory Lewis that dramatizes the turbulent reign and personal conflicts of a medieval Castilian monarch.
- F. None of above. chosen
Statements (49)
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 I of Castile Description of subject: John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
Referenced by (26)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
King Ferdinand I of Aragon
linked to: John I of Castile
linked to: John I of Castile