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v1 · public beta

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Siemowit I of Masovia

Polish duke

  • Fame49.0
  • Momentum3.7
  • Wikipedia1.3K
Source-basedStable
Lived 1215–1262, aged 47
  • Wikipedia
    13 languages
    Cross-language footprint
  • Era
    1215–1262
    Aged 47
Network

In their orbit

People connected to Siemowit I of Masovia

PO
SpousePereiaslawa of Galicia
Konrad I of Masovia
FatherKonrad I of Masovia
Agafia of Rus
MotherAgafia of Rus
Bolesław II of Masovia
ChildBolesław II of Masovia
Konrad II of Masovia
ChildKonrad II of Masovia
JO
SiblingJudith of Masovia
Bolesław I of Masovia
SiblingBolesław I of Masovia
Casimir I of Kuyavia
SiblingCasimir I of Kuyavia
Summary
Updated 2026-06-17

Siemowit I of Masovia, was a Polish prince member of the House of Piast, Duke of Czersk during 1247–1248, Duke of Masovia during 1248–1262, ruler over Sieradz during 1259–1260.

Key facts
Last updated
2026-06-17
Gallery

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By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Stable
49.0
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum3.7
Historical11.2
Source confidence60.0
Completeness40.0
Global rank
—
Country rank
—
Category rank
—
Receipts

Sources

  • 謝莫維特一世
    wikipedia · zh.wikipedia.org
    Low confidence
  • Земавіт I Мазавецкі
    wikipedia · be.wikipedia.org
    Low confidence
  • Zemovít I. Mazovský
    wikipedia · cs.wikipedia.org
    Low confidence
Identity

Quick facts

Country
—
Category
—
Profile type
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Status
deceased
Died
June 23, 1262
Wikipedia
View article
Last updated
3d ago
Momentum

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