Siemowit Piast of Masovia

Abt 1353 - 1426  (73 years)

• Name	Siemowit Piast of Masovia
  Suffix	IV
  Birth	Abt 1353
  Gender	Male
  FSID	GVZH-19B
  Burial	Jan 1426	Poland
  Death	21 Jan 1426	Poland
  Person ID	I15328	footsteps
  Last Modified	1 Jul 2025

  
  

  Father	Siemowit Piast,   b. 1320   d. 16 Jun 1381 (Age 61 years)
  Relationship	natural
  Mother	Eufemia Přemyslovna,   b. Abt 1319   d. Abt 1350 (Age 31 years)
  Relationship	natural
  Marriage	Abt 1336
  Family ID	F7296	Group Sheet  |  Family Chart

  
  

  Family	Aleksandra Olgierdówna Giedyminowicz von Litauen,   b. Abt 1360   d. 19 Jun 1434 (Age 74 years)
  Marriage	1387	Vilnius, Vilniaus Apskritis, Lithuania
  Children	+ 1. Cymburgis of Masovia,   b. 1394, Poland d. 28 Sep 1429, Austria (Age 35 years)  [Father: natural]  [Mother: natural]
  Family ID	F8523	Group Sheet  |  Family Chart
  Last Modified	1 Jul 2025