Alfonso XI of Castile
He consolidated royal power after a long minority and won at the Salado. He died of plague during the siege of Gibraltar.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1311 Documented
Death: 1350 Documented
Role: King of Castile and León
Other recorded names: Alfonso the Avenger
Dynasty: Ivrea-Burgundy · ES
Territories: Castile (ES) · León (ES)
Recorded relationships
Their titles over time
Follow the changing territories and offices of Alfonso XI of Castile. Each title retains its own status.
Governments in 1312
- Crown of Castile2 titles and offices
View titles and jurisdictions
- Castile · ESKing · Effective rule1312–1350
- León · ESKing · Effective rule1312–1350
Crown of Castile from 1230; the map retains the names Castile and León. Source for this grouping
Annual dates: overlap within one year does not prove that two offices were held on the same day. Regencies and co-rulerships retain their labels.
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Alfons XI., Kastilien und León, König
- Real Academia de la Historia · Diccionario Biográfico español
- Encyclopaedia Britannica
Biographical and contextual references in their original language. Sources and methodology.
Evidence for this profile
7 recorded claims · 4 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
1311
The authority record gives the birth as 1311. - DeathDocumented
1350
The authority record gives the death as 1350.
Family and relationships (1/3 with a precise source)
- FatherDocumented
Ferdinand IV of Castile
The authority record identifies Ferdinand IV of Castile (GND 119426684) as father. - MotherPending review
Constance of Portugal
A precise source has not yet been added. - Marriage or partnershipPending review
Maria of Portugal
A precise source has not yet been added.
Governments (0/2 with a precise source)
- GovernmentPending review
King · Castile · 1312–1350
A precise source has not yet been added. - GovernmentPending review
King · León · 1312–1350
A precise source has not yet been added.
Biographical and contextual references (3)
Editorial history
- 2026-10-12 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-08 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-03 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-09-30 · The duchy is limited to Dijon and Autun; each other fief now enters the map only under its dated ruler. John III of Namur and the Nevers/Rethel branch were added. The previous shape combined later counties and unrelated lands as if all belonged to the duchy from 1363.
- 2026-09-28 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
More paths from Alfonso XI of Castile
Family
Ferdinand IV of Castile“the Summoned”King of Castile and León1285 – 1312Constance of Portugal · ESConsort1290 – 1313Maria of Portugal · ESConsort1313 – 1357Peter I of Castile“the Cruel”King of Castile and León1334 – 1369
Henry II of Castile“the Fratricide”King of Castile1334 – 1379Sancho of Castile · ESCount1342 – 1374