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Philip I of Hesse

«the Magnanimous»

Landgrave of Hesse and one of the most important Protestant princes of the Reformation. After his death, the territory was divided among his sons, giving rise to branches including Hesse-Kassel and Hesse-Darmstadt.

1504 – 1567LandgraveHesse · ES
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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: 13 November 1504 Documented

Death: 31 March 1567 Documented

Role: Landgrave

Dynasty: Hesse · ES

Territories: Holy Roman Empire (ES) · Hesse (ES)

Recorded governments and reigns
Landgrave · Hesse · Landgraviate Pending review1509–1567Effective rule
Family network

Recorded relationships

Partners
Children
Documentation

Sources for this profile

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

Evidence for this profile

4 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 (0/1 with a precise source)
  • Marriage or partnershipPending review

    Christina of Saxony

    A precise source has not yet been added.
    No individual review recorded ·
Governments (0/1 with a precise source)
  • GovernmentPending review

    Landgrave · Hesse · 1509–1567

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

Related stories

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Story · Spanish original

The Protestant Reformation

Humanism, the Reformation, imperial politics and the response of Trent

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