Nielsen Hayden genealogy
Ancestors of Bernhard III of Saxony
1140 - 1212 (72 years)
┌── Esiko von Ballenstedt 
(Abt 1000 - Bef 1060)
(Abt 1000 - Bef 1060) │ └── Hidda von der Lausitz =>
=> │
┌── Adalbert von Ballenstedt (Abt 1030 - Abt 1080)
(Abt 1030 - Abt 1080) │ └── Mathilde von Werl-Hövel
│
┌── Otto von Ballenstedt (Abt 1075 - 9 Feb 1123)
(Abt 1075 - 9 Feb 1123) │ │
│ │ ┌── Wilhelm III of Weimar (Abt 960 - 16 Apr 1039) =>
(Abt 960 - 16 Apr 1039) => │ │ ┌── Otto (Abt 1005 - 1067)
(Abt 1005 - 1067) │ │ │
│ └── Adelheid ( - 28 Mar 1100)
( - 28 Mar 1100) │ │
│ │ ┌── Lambert II (Abt 991 of Louvain, Brabant, Belgium - Aft 21 Sep 1062) =>
(Abt 991 of Louvain, Brabant, Belgium - Aft 21 Sep 1062) => │ └── Adela de Louvain ( - 1083)
( - 1083) │ └── Uda of Lorraine =>
=> │
┌── Albrecht of Saxony (1100 - 18 Nov 1170)(m. Abt 1125)
(1100 - 18 Nov 1170)(m. Abt 1125) │ │
│ │ ┌── Bernard II (Abt 995 - 29 Jun 1059)(m. Abt 1020) =>
(Abt 995 - 29 Jun 1059)(m. Abt 1020) => │ │ ┌── Ordulf of Saxony (Abt 1020 - 28 Mar 1072)(m. Nov 1042)
(Abt 1020 - 28 Mar 1072)(m. Nov 1042) │ │ │ └── Eilika of Schweinfurt (Abt 1004 - Aft 1055)(m. Abt 1020) =>
(Abt 1004 - Aft 1055)(m. Abt 1020) => │ │ │
│ │ ┌── Magnus of Saxony (Abt 1045 - 23 Aug 1106 bur.Artlenburg, Lower Saxony)
(Abt 1045 - 23 Aug 1106 bur.Artlenburg, Lower Saxony) │ │ │ (m. Between 1070 and 1071)
│ │ │ │
│ │ │ │ ┌── St. Olaf II Haraldsson, King of Norway (Abt 995 - 31 Aug 1030 Stiklestad, Verdal,
│ │ │ │ │ Nord-Trøndelag, Norway)(m. Feb 1018) =>
(Abt 995 - 31 Aug 1030 Stiklestad, Verdal, │ │ │ │ │ Nord-Trøndelag, Norway)(m. Feb 1018) =>
│ │ │ └── Úfhildr Ólafsdóttir (Abt 1023 - 24 May 1070)(m. Nov 1042)
(Abt 1023 - 24 May 1070)(m. Nov 1042) │ │ │ └── Astrid Ólafsdóttir ( - Between 1021 and 1022)(m. Feb 1018) =>
( - Between 1021 and 1022)(m. Feb 1018) => │ │ │
│ └── Eilica von Sachsen (Abt 1080 - 16 Jan 1142)
(Abt 1080 - 16 Jan 1142) │ │
│ │ ┌── Vazul of Hungary (Abt 990 - 1037) =>
(Abt 990 - 1037) => │ │ ┌── Béla I, King of Hungary (Between 1015 and 1020 - 11 Sep 1063 Kinizsa Creek, Hungary)
(Between 1015 and 1020 - 11 Sep 1063 Kinizsa Creek, Hungary) │ │ │ (m. Between 1039 and 1043)
│ │ │ └── (Unknown lady of the Tátony clan)
│ │ │
│ └── Sophia of Hungary (Abt 1050 - 18 Jun 1095)(m. Between 1070 and 1071)
(Abt 1050 - 18 Jun 1095)(m. Between 1070 and 1071) │ │
│ │ ┌── Mieszko II Lambert, King Of Poland ( - May 1034)(m. 1013) =>
( - May 1034)(m. 1013) => │ └── Adelaide of Poland (22 Sep 1013 - Aft 1051)(m. Between 1039 and 1043)
(22 Sep 1013 - Aft 1051)(m. Between 1039 and 1043) │ └── Richeza of Lotharingia (Abt 998 - 21 Mar 1063 Saalfield, Thuringia, Germany)
(Abt 998 - 21 Mar 1063 Saalfield, Thuringia, Germany) │ (m. 1013) =>
│
Bernhard III of Saxony (1140 - 9 Feb 1212)
│
│ ┌── Tiemo of Formbach ( - Abt 7 Mar 1050)
( - Abt 7 Mar 1050) │ ┌── Meginhard IV ( - 1066)
( - 1066) │ ┌── Hermann I ( - 1122)
( - 1122) │ │ │
│ │ │ ┌── Elle
│ │ └── Mathilde von Reinhausen ( - Abt 1122)
( - Abt 1122) │ │
└── Sophia von Winzenburg ( - 8 Jun 1160)(m. Abt 1125)
( - 8 Jun 1160)(m. Abt 1125) │
│ ┌── Poppo II of Weimar (Abt 1008 - Bef 1044) =>
(Abt 1008 - Bef 1044) => │ ┌── Ulrich von Krain (Abt 1030 - 6 Mar 1070)(m. Between 1062 and 1063)
(Abt 1030 - 6 Mar 1070)(m. Between 1062 and 1063) │ │ └── Hadamut of Istrien ( - Aft 1040) =>
( - Aft 1040) => │ │
│ ┌── Poppo III (Abt 1064 - 3 Jan 1107)
(Abt 1064 - 3 Jan 1107) │ │ │
│ │ │ ┌── Béla I, King of Hungary (Between 1015 and 1020 -
│ │ │ │ 11 Sep 1063 Kinizsa Creek, Hungary)(m. Between 1039 and 1043) =>
(Between 1015 and 1020 -│ │ │ │ 11 Sep 1063 Kinizsa Creek, Hungary)(m. Between 1039 and 1043) =>
│ │ └── Sophia of Hungary (Abt 1050 - 18 Jun 1095)(m. Between 1062 and 1063)
(Abt 1050 - 18 Jun 1095)(m. Between 1062 and 1063) │ │ └── Adelaide of Poland (22 Sep 1013 - Aft 1051)(m. Between 1039 and 1043) =>
(22 Sep 1013 - Aft 1051)(m. Between 1039 and 1043) => │ │
└── Hedwig von Krain und Istrien ( - 1 Dec 1162)
( - 1 Dec 1162)