Nielsen Hayden genealogy
Richenza von Boyneburg
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- 1 Richenza von Boyneburg [1]
- Poppo I of Regenstein-Blankenburg b. Abt 1095 d. Abt 1164
- 2 Siegfried I of Blankenburg [1.1]
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- 3 Heinrich I of Blankenburg and Regenstein [1.1.1]
- (Unknown) von Polleben
- 4 Ulrich I von Regenstein [1.1.1.1] d. Between 24 Jun 1265 and 5 Jun 1267
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- 4 Ulrich I von Regenstein [1.1.1.1]
- 3 Heinrich I of Blankenburg and Regenstein [1.1.1]
- 2 Siegfried I of Blankenburg [1.1]