Nielsen Hayden genealogy
Family: Mieszko III, High Duke of Poland / Elisabeth of Hungary (F14497)
Boleslaw III "Wrymouth", King of Poland (1085-1138) 
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Salome von Berg-Schelklingen (1100-1144)
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Richiza of Poland (1116-1155)  |
| Agnieszka of Poland (1137-1183) |
| Casimir II (1138-1194) |
| Béla II "the Blind", King of Hungary (1108-1141)
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| Jelena of Serbia (1110-1147)
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| Mieszko III, High Duke of Poland (1126-1202)
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| Elisabeth of Hungary (1128-1154)
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| Elisabeth of Poland ( -1209) |
| Odon (1141-1194) |
| Ludmilla of Poland (1150-1223) |
| Judith of Poland (1152-1202) |