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Ferdinand IV of Castile

Spanish monarch

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 8, 2026
Entity authorityQ316859
Source-derived summary

Ferdinand IV (6 December 1285 – 7 September 1312) called the Summoned (el Emplazado), was King of Castile and León from 1295 until his death.

Ferdinand's upbringing the regency of his kingdoms was entrusted to his mother Queen María de Molina, however, he was tutored by his granduncle Henry of Castile the Senator. Queen María attempted to placate the nobility, confronted her son's enemies, and worked to secure her son's place on the throne. He faced uprisings from the nobility, led at numerous times by his uncle John of Castile, Lord of Valencia de Campos, and by Juan Núñez II de Lara, who were sometimes supported by, Juan Manuel, Prince of Villena, Ferdinand's first cousin once removed, the grandson of his great-grandfather and namesake Ferdinand III.

Like his predecessors on the throne, Ferdinand IV continued the Reconquista and, although he failed to conquer Algeciras in 1309, he captured the city of Gibraltar that same year. In 1312 he also conquered Alcaudete. During the Cortes of Valladolid of 1312, he promoted the reform of the administration of justice, among other areas of administration. He attempted to strengthen the royal authority to the detriment of the nobility. He died in Jaén on 7 September 1312 aged 26, and his mortal remains are now in the Royal Collegiate Church of Saint Hippolytus.

Early Life (1285–1295)

Ferdinand was born in the city of Alcazar de San Juan on 6 December 1285 as the second child and eldest son of King Sancho IV of Castile and his wife María de Molina. He was baptized at Seville Cathedral by Archbishop Raimundo de Losana and was immediately proclaimed heir to the Crown and received the homage of the nobles of the kingdom.

Editorial summary

“Ferdinand IV of Castile” enters the record as spanish monarch. Crown Archives preserves that source wording while asking what Ferdinand, Castile and Spanish can confirm, complicate or overturn.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1285, 1312, 1295, 1309—that can be checked directly. The linked authority record independently contributes the date 1285-12-06. Its strongest next move is a source search built around Ferdinand, Castile and Spanish.
Editorial analysis

Why this record matters

“Ferdinand IV of Castile” is worth following because a concise public description often conceals a longer documentary argument. Here, Ferdinand, Castile and Spanish provides the most credible route into that argument.

Evidence profile

The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 8, 2026. The linked authority identifier is Q316859. VIAF identifies the subject as 11158221. The Library of Congress control number is n96040169. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1285, 1312, 1295 and 1309.

Critical limits

A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
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Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Ferdinand IV of Castile”, its source revision and the description used here.
  2. Expand the search: follow Ferdinand IV of Castile primary sources, Ferdinand IV of Castile archive and Ferdinand research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Ferdinand IV of Castile”?
  2. Which primary records establish identity, chronology and institutional ties?
  3. Which claims depend on a single source or contested interpretation?
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Source & attribution

This entry incorporates text from Ferdinand IV of Castile” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.