Nielsen Hayden genealogy
Family: Henryk I-III von Schliesen / Matilde (F15021)
m. Bef Apr 1290Konrad I (1228-1273) 
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Salomea of Poland (1225-1267)
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Euphemia of Glogau (1251-1274)  |
| Albrecht I (1236-1279)
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| Alessina de Monferrato ( -1285)
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| Heinrich I of Brunswick (1267-1322) |
| Albrecht II of Brunswick (1268-1318) |
| Henryk I-III von Schliesen (1251-1309)
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| Matilde (1276-1318)
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| Heinrich II of Silesia (1289-1342) |