Nielsen Hayden genealogy
Ancestors of Ulrich I von Regenstein
- 1267 ┌── Poppo I of Regenstein-Blankenburg (Abt 1095 - Abt 1164)
│ │ ┌── Otto I von Northeim (Abt 1025 -
│ │ │ 11 Jan 1083 bur.Nicolai Chapel, Northeim, Lower Saxony, Germany) =>
│ │ │ 11 Jan 1083 bur.Nicolai Chapel, Northeim, Lower Saxony, Germany) =>
│ │ ┌── Siegfried III von Northeim (Abt 1053 - Abt 1107)
│ │ │ └── Richenza ( - Bef 11 Jan 1083)
│ │ │
│ └── Richenza von Boyneburg
│ └── Adelheid von Holstein
│
Ulrich I von Regenstein ( - Between 24 Jun 1265 and 5 Jun 1267)