The Tree of Europe · Person
Peter III of Portugal
He shared the royal dignity with Maria I through his marriage to the queen. His case shows that a royal title does not by itself imply an independent succession.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1717 Documented
Death: 1786 Documented
Role: King consort of Portugal
Dynasty: Braganza · ES
Territories: Portugal (ES)
Recorded governments and reigns
King · Portugal · Reign Pending review1777–1786Jure uxoris
Recorded relationships
Parents
John V of PortugalDocumentedMaria Anna of Austria · ESDocumented
Partners
Maria I of PortugalPending review
Children
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Peter III., Portugal, König
- 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
1717
The authority record gives the birth as 1717. - DeathDocumented
1786
The authority record gives the death as 1786.
Family and relationships (2/3 with a precise source)
- FatherDocumented
John V of Portugal
The authority record identifies John V of Portugal (GND 119362341) as father. - MotherDocumented
Maria Anna of Austria
The authority record identifies Maria Anna of Austria (GND 119360691) as mother. - Marriage or partnershipPending review
Maria I of Portugal
A precise source has not yet been added.
Governments (0/1 with a precise source)
- GovernmentPending review
King · Portugal · 1777–1786
A precise source has not yet been added.
Biographical and contextual references (2)
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 Peter III of Portugal
Family
John V of Portugal“the Magnanimous”King of Portugal1689 – 1750Maria Anna of Austria · ESConsort1683 – 1754
Maria I of Portugal“the Pious”Queen regnant of Portugal1734 – 1816
John VI of Portugal“the Clement”King of Portugal1767 – 1826Same dynasty
Joseph I of Portugal“the Reformer”King of Portugal1714 – 1777Barbara of Braganza · ESConsort1711 – 1758
Pedro I of Brazil“the Liberator”Emperor of Brazil · King of Portugal as Pedro IV1798 – 1834
Peter II of Portugal“the Pacific”King of Portugal1648 – 1706
Afonso VI of PortugalKing of Portugal1643 – 1683
John IV of Portugal“the Restorer”King of Portugal1604 – 1656In their lifetime
Joseph I of Portugal“the Reformer”King of Portugal1714 – 1777Mariana Victoria of Spain · ESConsort1718 – 1781Carlota Joaquina of Spain · ESConsort1775 – 1830Barbara of Braganza · ESConsort1711 – 1758
Philip V of Spain“the Spirited”King of Spain1683 – 1746
Charles VI, Holy Roman Emperor · ESEmperor1685 – 1740