Ferdinand IV of Castile
E451214
Ferdinand IV of Castile was a medieval king of Castile and León, remembered for his turbulent reign marked by internal noble conflicts and efforts to consolidate royal authority in the early 14th century.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ferdinand IV of Castile canonical | 17 |
| Ferdinand IV | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3475794 — 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: Ferdinand IV of Castile Context triple: [House of Ivrea, hasMember, Ferdinand IV of Castile]
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A.
Ferdinand III
Ferdinand III was a 17th-century Habsburg ruler who served as Holy Roman Emperor during the final phase of the Thirty Years' War and helped shape the Peace of Westphalia.
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B.
Ferdinand III of Castile
Ferdinand III of Castile was a 13th-century king of Castile and León renowned for his major role in the Reconquista and later canonization as a saint.
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C.
Sancho IV of Castile
Sancho IV of Castile was a 13th-century king of Castile and León known for consolidating royal authority amid internal dynastic conflicts and external wars on the Iberian Peninsula.
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D.
Sancho III of Castile
Sancho III of Castile was a 12th-century king of Castile whose brief and turbulent reign was marked by internal noble conflicts and struggles for power within the Iberian Christian kingdoms.
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E.
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.
- 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: Ferdinand IV of Castile Target entity description: Ferdinand IV of Castile was a medieval king of Castile and León, remembered for his turbulent reign marked by internal noble conflicts and efforts to consolidate royal authority in the early 14th century.
-
A.
Ferdinand III
Ferdinand III was a 17th-century Habsburg ruler who served as Holy Roman Emperor during the final phase of the Thirty Years' War and helped shape the Peace of Westphalia.
-
B.
Ferdinand III of Castile
Ferdinand III of Castile was a 13th-century king of Castile and León renowned for his major role in the Reconquista and later canonization as a saint.
-
C.
Sancho IV of Castile
Sancho IV of Castile was a 13th-century king of Castile and León known for consolidating royal authority amid internal dynastic conflicts and external wars on the Iberian Peninsula.
-
D.
Sancho III of Castile
Sancho III of Castile was a 12th-century king of Castile whose brief and turbulent reign was marked by internal noble conflicts and struggles for power within the Iberian Christian kingdoms.
-
E.
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.
- 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: Ferdinand IV of Castile Description of subject: Ferdinand IV of Castile was a medieval king of Castile and León, remembered for his turbulent reign marked by internal noble conflicts and efforts to consolidate royal authority in the early 14th century.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ferdinand IV of Castile
linked to: Ferdinand IV of Castile
subject linked to:
Lady of Castile