Siemowit I of Masovia

Abt 1228 - 1262  (~ 34 years)

• Name	Siemowit I of Masovia
  Birth	Abt 1228  [1]
  Gender	Male
  Death	23 Jun 1262  [1]
  Siblings	1 sibling
  + 1. Casimir I of Kujawien ,   b. Abt 1211   d. 14 Nov 1267  (Age ~ 56 years) ▻ Euphrosyne of Oppeln ,  m. 1257 + 2. Siemowit I of Masovia ,   b. Abt 1228   d. 23 Jun 1262  (Age ~ 34 years) ▻ Pereslajawa Danilovna of Halicz ,  m. Abt 1248
  Person ID	I29054	Ancestry of PNH, TNH, and others | Ancestor of TWK
  Last Modified	25 Jul 2020

  
  

  Father	Konrad I of Masovia,   b. Between 1187 and 1188   d. 31 Aug 1247 (Age ~ 60 years)
  Mother	Agafia Svjatoslava of Novgorod   d. Aft 31 Aug 1247
  Marriage	1207  [1]
  Family ID	F17327	Group Sheet  |  Family Chart

  
  

  Family	Pereslajawa Danilovna of Halicz   d. 12 Apr 1283
  Marriage	Abt 1248  [1]
  Children	+ 1. Boleslaw II of Masovia,   b. Abt 1251   d. 20 Apr 1313 (Age ~ 62 years)
  Family ID	F17326	Group Sheet  |  Family Chart
  Last Modified	26 Jul 2020

  
  

• Notes

  Duke of Masovia.

  
  

• Sources

  [S49] Genealogics by Leo Van de Pas, continued by Ian Fettes and Leslie Mahler.