Gustav I Vasa
Founder of the Vasa dynasty and a builder of the modern Swedish state. He broke with the Kalmar Union, promoted the Reformation and strengthened royal authority over the nobility and Church.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 12 May 1496 Documented
Death: 29 September 1560 Documented
Role: King
Dynasty: Vasa
Territories: Sweden (ES)
Recorded relationships
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Gustav I., Schweden, König
- 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
12 May 1496
The authority record gives the birth as 1496-05-12. - DeathDocumented
29 September 1560
The authority record gives the death as 1560-09-29.
Family and relationships (0/4 with a precise source)
- FatherPending review
Erik Johansson Vasa
A precise source has not yet been added. - MotherPending review
Cecilia Månsdotter
A precise source has not yet been added. - Marriage or partnershipPending review
Catherine of Saxe-Lauenburg
A precise source has not yet been added. - Marriage or partnershipPending review
Margaret Leijonhufvud
A precise source has not yet been added.
Governments (1/2 with a precise source)
- GovernmentDocumented
Regent · Sweden · 1521–1523
The source distinguishes the office of regent from the later reign. - GovernmentPending review
King · Sweden · 1523–1560
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.
