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Sancho IV of León and Castile

1258 – 1295

King of Castile and León from 1284 to 1295

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About Sancho IV of León and Castile

Lived 1258 – 1295 (aged 36). Sancho IV of León and Castile was a politician.

Sancho IV of Castile (12 May 1258 – 25 April 1295) called the Brave (el Bravo), was the king of Castile, León and Galicia (now parts of Spain) from 1284 to his death. Following his brother Ferdinand's death, he gained the support of nobles who declared him king instead of Ferdinand's son Alfonso. Faced with revolts throughout his reign, before he died he made his wife regent for his son, who became Ferdinand IV.

Biography

Sancho was the second son of Alfonso X and Yolanda, daughter of James I of Aragon. His elder brother, Ferdinand de la Cerda, died in November 1275. In 1282 Sancho assembled a coalition of nobles to declare for him against Ferdinand's son Alfonso, then took control of the kingdom when Alfonso X died in 1284. This was all against the wishes of their father, but Sancho was crowned in Toledo nevertheless.

Sancho's ascension was in part due to his rejection of his father's elitist politics. Sancho was recognised and supported by the majority of the nobility and the cities, but a sizable minority opposed him throughout his reign and worked for the heirs of Ferdinand de la Cerda. One of the leaders of the opposition was his brother John of Castile, who united to his cause the lord of Biscay, Lope Díaz III de Haro. Sancho responded by executing the Lord of Biscay and incarcerating his brother. According to the chroniclers, he cemented his hold on power by executing 4,000 other followers of Infante Alfonso, son of Ferdinand de la Cerda, in Badajoz. He executed 400 more in Talavera and more in Ávila and Toledo.

Upon dispensing with this opposition, Sancho pardoned his brother, who was released. John bided his time before fomenting revolt again: the conflict over Tarifa. He called in the aid of the Marinids in Morocco and besieged Guzmán the Good in his castle (1291). At this siege the innocent son of Guzmán died in what has been considered a famous act of heroism. Tarifa was faithfully defended until Sancho could rescue it and the Marinids retreated to the Maghreb. The intention of both John and the Sultan of Marinids, to invade, was foiled.

When James II succeeded to the Crown of Aragon, he endeavoured to bind the two crowns more closely and for Christian forces to unite to reconquer the Iberian peninsula from Islam. Indeed, both of James' predecessors had tried to do likewise. Sancho was also the friend and tutor of Juan Manuel of Castile.

Just before succumbing to a fatal illness (possibly tuberculosis) he appointed his wife, María de Molina, to act as regent for his nine-year-old son, Ferdinand IV. He died on 25 April 1295 in Toledo.

Family Sancho married María de Molina in 1282, but at first their marriage did not have the necessary papal dispensation for two reasons: First, they were first cousins once removed, and second, Sancho had been betrothed as an infant to a rich Catalan heiress named Guillerma Moncada.

Sancho and Maria had the following children: Isabella (1283–1328), Married first James II of Aragon and secondly John III, Duke of Brittany Ferdinand IV (1285–1312). Married Constance of Portugal. Alfonso de Castilla (1286–1291) Henry (1288–1299) Peter (1290–1319) married Maria daughter of James II of Aragon Philip (1292–1327). Married his cousin Margarita de la Cerda, daughter of Alfonso de la Cerda. Beatrice (1293–1359). Married Afonso IV of Portugal.

Sancho had three illegitimate children:

By María Alfonso Téllez de Menezes (d. Toro), wife of Juan García, Lord of Ucero: Violante Sánchez (died bef. 1327), who held the dowry of Ucero as its lady, married in 1293 Fernando Rodríguez de Castro, Lord of Lemos. Teresa Sánchez, who married Juan Alfonso Téllez de Meneses (died 5 May 1304), a Castilian nobleman, 4th Lord of Alburquerque, who became the 1st Count of Barcelos and was the Mordomo Mor (high steward) of King Denis I of Portugal, and had female issue. After the death of her first husband, she married Ruy Gil de Villalobos, with whom she had one daughter.

By another woman whose name is unknown, he had: Alfonso Sánchez, who married, as his second wife, María Díaz de Salcedo, but died without issue.

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Important facts

Birth century
Occupation
Positions held
Monarch of Castile and Leon
Also known as
Sancho IV of Castile

Family & relationships

Spouse
María de Molina
Child
Alfonso de Castilla y Molina
Child
Beatrice of Castile (1293–1359)
Child
Ferdinand IV of Castile
Child
Isabella of Castile, Queen of Aragon
Child
Peter of Castile, Lord of Cameros
Child
Philip of Castile, Lord of Cabrera and Ribera
Parent
Alfonso X of Castile
Parent
Violant of Aragon

People in Sancho IV of León and Castile's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Sancho IV of León and Castile's

Frequently asked questions

Who was Sancho IV of León and Castile?

King of Castile and León from 1284 to 1295

When was Sancho IV of León and Castile born?

Sancho IV of León and Castile was born on 12 May 1258 in Seville.

When did Sancho IV of León and Castile die?

Sancho IV of León and Castile died on 25 April 1295 in Toledo.

What was Sancho IV of León and Castile's occupation?

Sancho IV of León and Castile was a politician.

Sources & further reading

· Wikipedia: Sancho IV of León and Castile

· Wikidata: Q312110

· DBpedia: Sancho IV of Castile

Cite this page

APA: Biography.guide. (2026). Sancho IV of León and Castile. https://biography.guide/sancho-iv-of-leon-and-castile/

MLA: "Sancho IV of León and Castile." Biography.guide, https://biography.guide/sancho-iv-of-leon-and-castile/.

Chicago: "Sancho IV of León and Castile." Biography.guide. https://biography.guide/sancho-iv-of-leon-and-castile/.

Data last updated: 2026-09-30 · Spot an error? Report a correction.

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