Nielsen Hayden genealogy
Jaroslawa Rjurikovna of Kiev

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- 1 Jaroslawa Rjurikovna of Kiev [1]
Svjatoslav Igorjewitsch b. Abt 1177 d. Sep 1211
- 2 Agafia Svjatoslava of Novgorod [1.1]
d. Aft 31 Aug 1247
Konrad I of Masovia b. Between 1187 and 1188 d. 31 Aug 1247
- 3 Casimir I of Kujawien [1.1.1]
b. Abt 1211 d. 14 Nov 1267
Euphrosyne of Oppeln b. Between 1228 and 1230 d. 4 Nov 1292
- 4 Euphemia of Kujawien [1.1.1.1]
d. 18 Mar 1308 [ =>]
- 4 Euphemia of Kujawien [1.1.1.1]
- 3 Siemowit I of Masovia [1.1.2]
b. Abt 1228 d. 23 Jun 1262
Pereslajawa Danilovna of Halicz d. 12 Apr 1283
- 4 Boleslaw II of Masovia [1.1.2.1]
b. Abt 1251 d. 20 Apr 1313 [ =>]
- 4 Boleslaw II of Masovia [1.1.2.1]
- 3 Casimir I of Kujawien [1.1.1]
- 2 Agafia Svjatoslava of Novgorod [1.1]