Nielsen Hayden genealogy
Family: Boleslaw / Helene of Hungary (F14973)
m. 1257Wladislaw Odonicz (1190-1239) 
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Jadwiga ( -1249)
|
Przmyslaw I (1220-1257)  |
| Salomea of Poland (1225-1267) |
| Béla IV, King of Hungary (1206-1270)
|
| Maria Laskarina (1206-1270)
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| Anna of Hungary (1226- ) |
| Istvan V, King of Hungary (1239-1272) |
| Boleslaw (1221-1279)
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| Helene of Hungary (1244-1298)
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| Elisabeth von Kalisch (1261-1304) |