Peter I of Portugal
King of Portugal, remembered for his relationship with Inês de Castro and his reputation for stern justice. His short reign strengthened the Crown’s authority.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1320 Documented
Death: 1367 Documented
Role: King of Portugal
Other recorded names: Peter the Just
Dynasty: Portuguese House of Burgundy · ES
Territories: Portugal (ES)
Recorded relationships
Sources for this profile
- Treccani · Juan I de Portugal
- Deutsche Nationalbibliothek · GND authority record · Peter I., Portugal, 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
6 recorded claims · 1 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
1320
The authority record gives the birth as 1320. - DeathDocumented
1367
The authority record gives the death as 1367.
Family and relationships (3/3 with a precise source)
- FatherDocumented
Afonso IV of Portugal
The authority record identifies Afonso IV of Portugal (GND 143111906) as father. - MotherDocumented
Beatrice of Castile
The authority record identifies Beatrice of Castile (GND 1081791381) as mother. - Marriage or partnershipDocumented
Constanza Manuel of Villena
The authority record identifies Constanza Manuel of Villena (GND 1081796332) as spouse.
Governments (0/1 with a precise source)
- GovernmentPending review
King · Portugal · 1357–1367
A precise source has not yet been added.
Biographical and contextual references (4)
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 Peter I of Portugal
Family
Afonso IV of Portugal“the Brave”King of Portugal1291 – 1357Beatrice of Castile · ESConsort1293 – 1359Constanza Manuel of Villena · ESConsort1313 – 1345
Ferdinand I of Portugal“the Handsome”King of Portugal1345 – 1383John of Portugal · ESDuke1349 – 1397Beatrice of Portugal · ESInfanta1347 – 1381
