Nielsen Hayden genealogy
Ancestors of Rudolf von Werl
986 - 
┌── 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 - ??)
│ ┌── Rudolph II, King of Burgundy (Abt 890 - 11 Jul 937)(m. 922) =>
(Abt 890 - 11 Jul 937)(m. 922) => │ ┌── Conrad I, King of Burgundy ( - 19 Oct 993)
( - 19 Oct 993) │ │ └── Bertha of Swabia (Abt 907 - 2 Jan 966)(m. 922) =>
(Abt 907 - 2 Jan 966)(m. 922) => │ │
└── Gerberga of Burgundy ( - Aft 1016)(m. Between 978 and 979)
( - Aft 1016)(m. Between 978 and 979) │
│ ┌── Louis IV, King of Western Francia (919 - 10 Sep 954 Rheims, Marne, Champagne-Ardenne, France)
(919 - 10 Sep 954 Rheims, Marne, Champagne-Ardenne, France) │ │ (m. 939) =>
└── Matilda of the West Franks ( - Abt 981)
( - Abt 981) └── Gerberga of Saxony (Between 913 and 914 - 5 May 969 bur.Saint-Rémy de Reims)(m. 939) =>
(Between 913 and 914 - 5 May 969 bur.Saint-Rémy de Reims)(m. 939) =>