Trojden I, Duke of Masovia
type: Person
description: Duke of Masovia
birth date: 1284-00-00
death date: 1341-03-13
death place: Warka
parent: Bolesław II of Masovia
parent: Gaudemunda of Lithuania
spouse: Maria of Galicia
children: Siemowit III, Duke of Masovia
children: Casimir of Masovia
children: Bolesław Jerzy of Mazovia
children: Eufemia of Masovia
sibling: Euphrosyne of Masovia
sibling: Siemowit II of Masovia
sibling: Wenceslaus of Płock
has occupation: aristocrat
additional property: PropertyValue
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additional property: PropertyValue
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  value: Trojden I, Duke of Czersk
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  value: March 13, 1341
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  value: Siemowit II of Masovia
additional property: PropertyValue
  property ID: P3373
  value: Wenceslaus of Płock
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additional property: PropertyValue
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  yearly pageviews: 105
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    pct: 3.1
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    value label: Warka
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    value label: Bolesław II of Masovia
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value label: Piasts of Mazovia

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value: Q166886
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value label: duke

value: Q2478141
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value label: aristocrat

value: Q18426453
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confidence: 0.2
value label: Our Lady of the Scapular church in Warka

value: Trojden I, Duke of Czersk
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value: +1284-00-00T00:00:00Z
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value label: Siemowit II of Masovia

value: Q178603
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confidence: 0.0
value label: Wenceslaus of Płock

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confidence: 0.0

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value: p=trojden;n=piast;oc=1
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value: dw.1529
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confidence: 0.2

source: Freebase Data Dumps
stated in qid: Q15241312
pub year: 2013

source: Sejm-Wielki.pl
stated in qid: Q93482363

wikidata id: Q2593286
domain: human
level: standard
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data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-01T03:12:52.274199Z
entity updated at: 2026-04-10T23:43:11.814721+00:00Z
entity created at: 2026-04-10T23:43:11.814721+00:00Z