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.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (2)

Label Occurrences
John II of Castile canonical 17
John II, King of Castile and León 1

Statements (47)

Predicate Object
instanceOf 15th-century monarch
King of Castile
human
monarch
ascendedToThroneAsMinor true
associatedWith Iberian Peninsula
birthDate 1405-03-06
birthPlace Toro
burialPlace Cartuja de Miraflores
child Henry IV of Castile
Isabella I of Castile
surface form: Isabella of Castile
conflictWith Castilian high nobility
countryOfCitizenship Crown of Castile
deathDate 1454-07-21
deathPlace Valladolid
era 15th century
Late Middle Ages
father Henry III of Castile
givenName John
governmentTypeDuringReign feudal monarchy
grandchild Isabella I of Castile
historicalRegionRuled Castile
León
house Henry II of Castile
surface form: Trastámara
mother Catherine of Lancaster
motherLanguage Castilian
nobleFamily House of Trastámara
notableCourtFavorite Álvaro de Luna
notableEventDuringReign internal noble conflicts in Castile
struggle for control between crown and nobility
notableRelative Isabella I of Castile
positionHeld King of Castile
King of León
predecessor Henry III of Castile
regency Catherine of Lancaster
Ferdinand I of Aragon
regnalName John II
reignCharacterization politically weak
reignDominatedBy powerful nobles
Álvaro de Luna
reignEnd 1454
reignStart 1406
religion Roman Catholicism
spouse Isabella of Coimbra
surface form: Isabella of Portugal

Maria of Aragon
successor Henry IV of Castile
title John II of Castile self-linksurface differs
surface form: John II, King of Castile and 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: 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.

Crown of Castile monarch John II of Castile
House of Trastámara notableMember John II of Castile
Isabella I of Castile father John II of Castile
John II of Castile title John II of Castile self-linksurface differs
this entity surface form: John II, King of Castile and León
Henry IV of Castile father John II of Castile
Henry IV of Castile predecessor John II of Castile
Catherine of Lancaster child John II of Castile
Joanna la Beltraneja grandfather John II of Castile
Henry III of Castile child John II of Castile
Henry III of Castile successor John II of Castile
Alfonso, Prince of Asturias father John II of Castile
King of Galicia hasMonarch John II of Castile
Cartuja de Miraflores foundedBy John II of Castile
Cartuja de Miraflores burialPlaceOf John II of Castile
Álvaro de Luna employer John II of Castile
Maria of Aragon spouse John II of Castile
Maria of Castile sibling John II of Castile