Peter I of Castile
King of Castile, opposed by a powerful coalition of nobles and his half-brother Henry of Trastámara. His death at Montiel ended the legitimate Burgundian line on the Castilian throne.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 30 August 1334 Documented
Death: 22 March 1369 Documented
Role: King of Castile and León
Other recorded names: Peter the Cruel
Dynasty: Ivrea-Burgundy · ES
Territories: Castile (ES) · León (ES)
Recorded relationships
Their titles over time
Follow the changing territories and offices of Peter I of Castile. Each title retains its own status.
Governments in 1350
- Crown of Castile2 titles and offices
View titles and jurisdictions
- Castile · ESKing · Effective rule1350–1366
- León · ESKing · Effective rule1350–1366
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 · Peter I., Kastilien-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
8 recorded claims · 5 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
30 August 1334
The authority record gives the birth as 1334-08-30. - DeathDocumented
22 March 1369
The authority record gives the death as 1369-03-22.
Family and relationships (1/2 with a precise source)
- FatherDocumented
Alfonso XI of Castile
The authority record identifies Alfonso XI of Castile (GND 119167573) as father. - MotherPending review
Maria of Portugal
A precise source has not yet been added.
Governments (0/4 with a precise source)
- GovernmentPending review
King · Castile · 1350–1366
A precise source has not yet been added. - GovernmentPending review
King · Castile · 1367–1369
A precise source has not yet been added. - GovernmentPending review
King · León · 1350–1366
A precise source has not yet been added. - GovernmentPending review
King · León · 1367–1369
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.
