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.
From *.wikipedia.org,
General Info
.
Male
Date of Birth
November 30th, 1345
Age
679
Date of Death
December 8th, 1429
Died Aged
84
Star Sign
Sagittarius
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Relatives
Siemowit IV
Brother
Danutė of Lithuania
Wife
Siemowit III, Duke of Masovia
Father
Euphemia of Masovia
Sister
Bolesław Januszowic
Son
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