Nielsen Hayden genealogy
Family: Otto I, Holy Roman Emperor / St. Adelaide of Italy (F1784)
m. 951Heinrich I "The Fowler", King of Germany (876-936) 
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St. Matilda (890-968)
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Hedwig of Saxony ( -959)  |
| Gerberga of Saxony (913-969) |
| Rudolph II, King of Burgundy (890-937)
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| Bertha of Swabia (907-966)
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| Conrad I, King of Burgundy ( -993) |
| Otto I, Holy Roman Emperor (912-973)
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| St. Adelaide of Italy (931-999)
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| Otto II, Holy Roman Emperor (955-983) |