The Tree of Europe · Person
John III of Portugal
«the Pious»
His reign consolidated the Portuguese presence in Brazil and on the Asian routes. The introduction of the Inquisition profoundly changed religious and social life in the kingdom.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1502 Documented
Death: 1557 Documented
Role: King of Portugal
Other recorded names: John the Pious
Dynasty: Aviz · ES
Territories: Portugal (ES)
Recorded governments and reigns
King · Portugal · Reign Pending review1521–1557Effective rule
Recorded relationships
Parents
Manuel I of PortugalDocumentedMaria of Aragon · ESDocumented
Partners
Catherine of Austria · ESPending review
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Johann III., 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 · 2 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
1502
The authority record gives the birth as 1502. - DeathDocumented
1557
The authority record gives the death as 1557.
Family and relationships (2/3 with a precise source)
- FatherDocumented
Manuel I of Portugal
The authority record identifies Manuel I of Portugal (GND 118954830) as father. - MotherDocumented
Maria of Aragon
The authority record identifies Maria of Aragon (GND 1147210497) as mother. - Marriage or partnershipPending review
Catherine of Austria
A precise source has not yet been added.
Governments (0/1 with a precise source)
- GovernmentPending review
King · Portugal · 1521–1557
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.
Keep exploring
More paths from John III of Portugal
Family
Manuel I of Portugal“the Fortunate”King of Portugal1469 – 1521Maria of Aragon · ESConsort1482 – 1517Catherine of Austria · ESConsort1507 – 1578Maria Manuela of Portugal · ESConsort1527 – 1545John Manuel of Portugal · ESPrince1537 – 1554Same dynasty
Duarte of Portugal, Duke of Guimarães · ESDuke1515 – 1540
Isabella of Portugal · ESConsort1503 – 1539Beatrice of Portugal · ESConsort1504 – 1538
Henry of PortugalKing of Portugal1512 – 1580Maria of Portugal · ESPrincess / Consort1538 – 1577Miguel da Paz · ESPrince1498 – 1500In their lifetime
Philip II of Spain“the Prudent”King of Spain and Portugal · King of England jure uxoris1527 – 1598
Sebastian of Portugal“the Desired”King of Portugal1554 – 1578Henry of PortugalKing of Portugal1512 – 1580Duarte of Portugal, Duke of Guimarães · ESDuke1515 – 1540Jaime I of Braganza · ESDuke1479 – 1532Teodósio I of Braganza · ESDuke1520 – 1563