Nielsen Hayden genealogy
Family: Henry IX of Bavaria / Wulfhilde of Saxony (F327)
m. Abt 1100Welf I of Bavaria ( -1101) 
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Judith of Flanders (1033-1094)
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| Magnus of Saxony (1045-1106)
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| Sophia of Hungary (1050-1095)
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Eilica von Sachsen (1080-1142)  |
| Henry IX of Bavaria (1074-1126)
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| Wulfhilde of Saxony (1075-1126)
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| Matilda of Bavaria ( -1183) |
| Wulfhild von Bayern ( -1160) |
| Heinrich of Saxony (1100-1139) |
| Judith of Bavaria (1100-1130) |