# Janusz I of Warsaw

> Janusz I of Warsaw, also known as Janusz I the Old, was a Polish prince member of the House of Piast in the Masovian branch, from 1373/74 Duke of Warsaw and after the division of the paternal inheritance between him and his brother in 1381, ruler over Nur, Łomża, Liw, Ciechanów, Wyszogród and Zakroczym. In addition, he was a vassal of the Polish Kingdom since 1391 for the fief of Podlachia.

*Polish noble*

**Canonical URL:** https://fame.am/person/janusz-i-of-warsaw

## Identity
- **Profile type:** Historical Figure ([Wikidata](https://www.wikidata.org/entity/Q2798645))
- **Category:** Historical Figures
- **Born:** 1347
- **Died:** 1429-12-08
- **Status:** deceased
- **Gender:** male

## Fame
- **Popularity score:** 48.7 / 100
- **Momentum:** 1.7 / 100  (trend: STABLE)
- **Historical depth:** 10.5 / 100
- **Attention shift:** 8.7 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Sources
- [雅努斯一世](https://zh.wikipedia.org/wiki/%E9%9B%85%E5%8A%AA%E6%96%AF%E4%B8%80%E4%B8%96)
- [يانوش الاول ملك وارسو](https://arz.wikipedia.org/wiki/%D9%8A%D8%A7%D9%86%D9%88%D8%B4_%D8%A7%D9%84%D8%A7%D9%88%D9%84_%D9%85%D9%84%D9%83_%D9%88%D8%A7%D8%B1%D8%B3%D9%88)
- [Janusz I. Starszy](https://de.wikipedia.org/wiki/Janusz_I._Starszy)
- [Γιάνους Α΄ της Βαρσοβίας](https://el.wikipedia.org/wiki/%CE%93%CE%B9%CE%AC%CE%BD%CE%BF%CF%85%CF%82_%CE%91%CE%84_%CF%84%CE%B7%CF%82_%CE%92%CE%B1%CF%81%CF%83%CE%BF%CE%B2%CE%AF%CE%B1%CF%82)
- [Janusz I the Old](https://en.wikipedia.org/wiki/Janusz_I_the_Old)
- [Janusz Ier l'Aîné](https://fr.wikipedia.org/wiki/Janusz_Ier_l'A%C3%AEn%C3%A9)
- [ヤヌシュ1世スタルシ](https://ja.wikipedia.org/wiki/%E3%83%A4%E3%83%8C%E3%82%B7%E3%83%A51%E4%B8%96%E3%82%B9%E3%82%BF%E3%83%AB%E3%82%B7)
- [Janušas I Senasis](https://lt.wikipedia.org/wiki/Janu%C5%A1as_I_Senasis)
- [Jan I van Warschau](https://nl.wikipedia.org/wiki/Jan_I_van_Warschau)
- [Janusz I Starszy](https://pl.wikipedia.org/wiki/Janusz_I_Starszy)
- [Януш Мазовецкий](https://ru.wikipedia.org/wiki/%D0%AF%D0%BD%D1%83%D1%88_%D0%9C%D0%B0%D0%B7%D0%BE%D0%B2%D0%B5%D1%86%D0%BA%D0%B8%D0%B9)
- [Януш I Старший](https://uk.wikipedia.org/wiki/%D0%AF%D0%BD%D1%83%D1%88_I_%D0%A1%D1%82%D0%B0%D1%80%D1%88%D0%B8%D0%B9)
- [Wikidata](https://www.wikidata.org/wiki/Q2975528)

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