Nielsen Hayden genealogy
Family: Boleslaw I of Silesia / Christina (F14966)
Wladislaw II, King of Poland (1105-1159) 
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Agnes of Babenberg (1110-1157)
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Mieszko I of Oppeln (1132-1221)  |
| Richeza of Poland (1135-1185) |
| Boleslaw I of Silesia (1130-1201)
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| Christina (1149-1204) |
| Henryk I of Silesia (1167-1238) |