Nielsen Hayden genealogy
Family: Siegfried III von Northeim / Adelheid von Holstein (F17402)
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Otto I von Northeim (1025-1083)
|
Richenza ( -1083) |
Ita von Northeim ( -1100)  |
| Kuno von Beichlingen ( -1103) |
| Heinrich von Northeim (1051-1101) |
| Siegfried III von Northeim (1053-1107)
|