Nielsen Hayden genealogy
Ancestors of Heinrich von Northeim
Abt 1051 - Bef 1101 (~ 50 years) ┌── Siegfried I von Northeim ( - 1004)
┌── Benno von Northeim ( - Between 1047 and 1049)
│ └── Mathilde
│
┌── Otto I von Northeim (Abt 1025 - 11 Jan 1083 bur.Nicolai Chapel, Northeim, Lower Saxony, Germany)
Heinrich von Northeim (Abt 1051 - Bef 10 Apr 1101)
└── Richenza ( - Bef 11 Jan 1083)