Nielsen Hayden genealogy
Siegfried III von Northeim
![Male](img/tng_male.gif)
( = Descendancy chart to this point,
= Expand,
= Collapse)
- 1 Siegfried III von Northeim [1] b. Abt 1053 d. Abt 1107
Adelheid von Holstein
- 2 Richenza von Boyneburg [1.1]
Poppo I of Regenstein-Blankenburg b. Abt 1095 d. Abt 1164
- 3 Siegfried I of Blankenburg [1.1.1]
- 4 Heinrich I of Blankenburg and Regenstein [1.1.1.1]
[ =>]
- 4 Heinrich I of Blankenburg and Regenstein [1.1.1.1]
- 3 Siegfried I of Blankenburg [1.1.1]
- 2 Richenza von Boyneburg [1.1]