Masovian Piasts

Janusz I the Old

Also known as: Janusz I Warszawski, Janusz I of Warsaw

Born:: ca. 1346
Died:: 08.12.1429
Place of death:: Czersk
Place of burial:: Archcathedral Basilica of St. John the Baptist in Warsaw

Titles

Relations

father: Siemowit III
mother: Eufemia of Opawa

Bibliography

Janusz Grabowski, Poczet książąt i księżnych mazowieckich, Avalon, Kraków 2019