Nielsen Hayden genealogy
Family: Frederick II von Hohenstaufen / Judith of Bavaria (F50)
m. 1121Frederick I of Swabia (1050-1105) 
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Agnes of Germany (1073-1143)
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Heilika of Swabia (1087-1111)  |
| Konrad III of Swabia, King of the Romans (1093-1152) |
| 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) |
| Frederick II von Hohenstaufen (1090-1147)
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| Judith of Bavaria (1100-1130)
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| Frederick Barbarossa, Holy Roman Emperor (1122-1190) |
| Bertha of Swabia (1123-1195) |