The Tree of Europe · Person

Frederick III of Denmark

King of Denmark and Norway from 1648. After defeats by Sweden in which he lost Scania, he established hereditary and absolute monarchy in 1660, formalised in the King’s Law of 1665.

1609 – 1670KingOldenburg · ES

This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.

Historical profile

Key details

Birth: 18 March 1609 Documented

Death: 9 February 1670 Documented

Role: King

Dynasty: Oldenburg · ES

Territories: Denmark (ES) · Norway (ES)

Recorded governments and reigns
King · Denmark · Reign Documented1648–1670Effective rule
King · Norway · Reign Pending review1648–1670Effective rule
Family network

Recorded relationships

Crowns and unions

Their titles over time

Follow the changing territories and offices of Frederick III of Denmark. Each title retains its own status.

Governments in 1648

  • Denmark–Norway2 titles and offices
    View titles and jurisdictions

    Common monarchical direction from the reorganisation of 1536–1537. Its scope excludes Sweden, the Gottorp duchies and earlier Nordic unions based on kinship or claims. 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.

Documentation

Sources for this profile

Biographical and contextual references in their original language. Sources and methodology.

Evidence for this profile

7 recorded claims · 3 without a claim-specific source. Context references do not by themselves verify every fact.

Dates (2/2 with a precise source)
Family and relationships (1/3 with a precise source)
  • FatherPending review

    Christian IV of Denmark

    A precise source has not yet been added.
    No individual review recorded ·
  • MotherPending review

    Anne Catherine of Brandenburg

    A precise source has not yet been added.
    No individual review recorded ·
  • Marriage or partnershipDocumented

    Sophia Amalie of Brunswick-Lüneburg

    The authority record identifies Sophia Amalie of Brunswick-Lüneburg (GND 119471922) as spouse.
    Reviewed on 2026-10-17 by El Árbol de Europa ·
Governments (1/2 with a precise source)
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.

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