Nielsen Hayden genealogy
Ancestors of Ulrich of Passau
Abt 1050 - 1099 (~ 49 years) ┌── Ratpoto I
┌── Ratpoto II ( - Aft 1006 Mondsee, Austria)
┌── Dietpold I ( - Abt 18 May 1060)
┌── Ratpoto IV ( - 15 Oct 1080 Hohenmölsen, Lower Saxony, Germany)
Ulrich of Passau (Abt 1050 - 1099)
│ ┌── Siegfried VII
└── Mathilde