Nielsen Hayden genealogy
Ancestors of Hermann III
Abt 1015 - Bef 1050 (~ 34 years)
┌── Hermann I of Werl 
(Abt 940 - Bef 988)(m. Between 978 and 979)
(Abt 940 - Bef 988)(m. Between 978 and 979) ┌── Rudolf von Werl (Between 982 and 986 - ??)
(Between 982 and 986 - ??) │ │ ┌── Conrad I, King of Burgundy ( - 19 Oct 993) =>
( - 19 Oct 993) => │ └── Gerberga of Burgundy ( - Aft 1016)(m. Between 978 and 979)
( - Aft 1016)(m. Between 978 and 979) │ └── Matilda of the West Franks ( - Abt 981) =>
( - Abt 981) => │
Hermann III (Abt 1015 - Bef 1050)