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John Sigismund Zápolya

His minority prolonged the rivalry between the Zápolyas and Habsburgs. The agreement of Speyer in 1570 exchanged his claim to the Hungarian kingship for the title of Prince of Transylvania and the Parts of Hungary, giving shape to the new principality.

1540 – 1571King-elect / PrinceZápolya · ES
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Portrait of John Sigismund Zápolya
Posthumous portraitJohn Sigismund Zápolya · engravingDominicus Custos · c. 1600Private collectionPublic domain · PDM 1.0 · Source

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: 1540 Pending review

Death: 1571 Pending review

Role: King-elect / Prince

Dynasty: Zápolya · ES

Territories: Hungary (ES) · Transylvania (ES)

Recorded governments and reigns
King · Hungary · Reign Pending review1540–1551Rival
King · Hungary · Reign Pending review1556–1570Rival
Prince · Transylvania · Principality Pending review1570–1571Effective rule
Family network

Recorded relationships

Parents
Crowns and unions

Their titles over time

Follow the changing territories and offices of John Sigismund Zápolya. Each title retains its own status.

Governments in 1570

  • Principality of TransylvaniaPrince
    View titles and jurisdictions
Nominal and disputed titles (1)

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.

Evidence for this profile

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

Dates (0/2 with a precise source)
  • BirthPending review

    1540

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

    1571

    A precise source has not yet been added.
    No individual review recorded ·
Family and relationships (0/2 with a precise source)
  • FatherPending review

    John Zápolya

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

    Isabella Jagiellon

    A precise source has not yet been added.
    No individual review recorded ·
Governments (0/3 with a precise source)
  • GovernmentPending review

    King · Hungary · 1540–1551

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

    King · Hungary · 1556–1570

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

    Prince · Transylvania · 1570–1571

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

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