The Tree of EuropeHistorical and genealogical atlas
ESEN
The Tree of Europe · Person

William Frederick of Nassau-Dietz

Stadtholder in the Netherlands, 1640–1664, exercising delegated government. A prince of the House of Nassau.

1613 – 1664Prince / StadtholderNassau · ES
Explore this family · Spanish AtlasBack to people

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: 7 August 1613 Documented

Death: 21 October 1664 Documented

Role: Prince / Stadtholder

Dynasty: Nassau · ES

Territories: Nassau (ES) · Low Countries (ES)

Recorded governments and reigns
Stadtholder · Low Countries · Stadtholdership Documented1640–1664Delegated governmentProvincial office delegated by the States, with individually documented dates and jurisdictions. Its scope excludes hereditary sovereignty over the whole Republic and the Spanish provinces.
Count · Nassau · County Documented1640–1653Branch rule
Prince · Nassau · Principality Documented1654–1664Branch rule
Family network

Recorded relationships

Parents
Partners
Children
Crowns and unions

Their titles over time

Follow the changing territories and offices of William Frederick of Nassau-Dietz. Each title retains its own status.

Governments in 1640

  • United ProvincesStadtholder
    View titles and jurisdictions
    • Low Countries · ESStadtholder · Delegated government · Provinces with dated commissions: Drenthe, Friesland, Groningen1640–1664 · Provincial office delegated by the States, with individually documented dates and jurisdictions. Its scope excludes hereditary sovereignty over the whole Republic and the Spanish provinces.
  • NassauCount
    View titles and jurisdictions

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

8 recorded claims · 2 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)
  • FatherDocumented

    Ernest Casimir of Nassau-Dietz

    The authority record identifies Ernest Casimir of Nassau-Dietz (GND 132507714) as father.
    Deutsche Nationalbibliothek · GND · Wilhelm Friedrich, Nassau-Diez, Fürst · Relationships: father → GND 132507714
    Reviewed on 2026-10-17 by El Árbol de Europa ·
  • MotherPending review

    Sophia Hedwig of Brunswick-Lüneburg

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

    Albertine Agnes of Orange-Nassau

    A precise source has not yet been added.
    No individual review recorded ·
Governments (3/3 with a precise source)
Biographical and contextual references (1)
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 William Frederick of Nassau-Dietz