Nielsen Hayden genealogy
Ancestors of Albrecht of Saxony
1100 - 1170 (70 years) ┌── Esiko von Ballenstedt (Abt 1000 - Bef 1060)
│ │ ┌── Udo I (Abt 935 - ??)
│ └── Hidda von der Lausitz
│
┌── Adalbert von Ballenstedt (Abt 1030 - Abt 1080)
│ └── Mathilde von Werl-Hövel
│
┌── Otto von Ballenstedt (Abt 1075 - 9 Feb 1123)
│ │
│ │ ┌── Wilhelm II of Weimar (Between 930 and 935 - 1003) =>
│ │ ┌── Wilhelm III of Weimar (Abt 960 - 16 Apr 1039)
│ │ ┌── Otto (Abt 1005 - 1067)
│ │ │ │
│ │ │ │ ┌── Thietmar II (Abt 995 - 10 Jan 1030) =>
│ │ │ └── Oda ( - Bef 1068)
│ │ │
│ └── Adelheid ( - 28 Mar 1100)
│ │
│ │ ┌── Lambert I "The Bearded" (Abt 950 - 12 Oct 1015)(m. Between 985 and 990) =>
│ │ ┌── Lambert II (Abt 991 of Louvain, Brabant, Belgium - Aft 21 Sep 1062)
│ │ │ └── Gerberga of Lorraine ( - Aft 1017)(m. Between 985 and 990) =>
│ │ │
│ └── Adela de Louvain ( - 1083)
│ │
│ └── Uda of Lorraine
│
Albrecht of Saxony (1100 - 18 Nov 1170)
│
│ ┌── Bernard II (Abt 995 - 29 Jun 1059)(m. Abt 1020)
│ │
│ ┌── Ordulf of Saxony (Abt 1020 - 28 Mar 1072)(m. Nov 1042)
│ │ │
│ │ │ ┌── Henry of Schweinfurt (Abt 971 - 18 Sep 1017) =>
│ │ └── Eilika of Schweinfurt (Abt 1004 - Aft 1055)(m. Abt 1020)
│ │ └── Gerberge (Abt 970 - Aft 1036)
│ │
│ ┌── Magnus of Saxony (Abt 1045 - 23 Aug 1106 bur.Artlenburg, Lower Saxony)(m. Between 1070 and 1071)
│ │ │
│ │ │ ┌── Harald Grenske (Abt 952 - Abt 995)
│ │ │ ┌── St. Olaf II Haraldsson, King of Norway (Abt 995 - 31 Aug 1030 Stiklestad, Verdal, Nord-
│ │ │ │ Trøndelag, Norway)(m. Feb 1018)
│ │ │ │ Trøndelag, Norway)(m. Feb 1018)
│ │ │ │ └── Asta Gudbrandsdottir =>
│ │ │ │
│ │ └── Úfhildr Ólafsdóttir (Abt 1023 - 24 May 1070)(m. Nov 1042)
│ │ │
│ │ │ ┌── Olof Skötkonung, King of Sweden (Sweden;Abt 965 - Abt 1020) =>
│ │ └── Astrid Ólafsdóttir ( - Between 1021 and 1022)(m. Feb 1018)
│ │ └── Ethla of Wendland
│ │
└── Eilica von Sachsen (Abt 1080 - 16 Jan 1142)
│
│ ┌── Mihály of Hungary (Abt 960 - ??) =>
│ ┌── Vazul of Hungary (Abt 990 - 1037)
│ │ └── Adelajda of Poland ( - Aft 997)
│ │
│ ┌── Béla I, King of Hungary (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 1070 and 1071)
│
│ ┌── Boleslaw I Chrobry, King of Poland (Abt 967 - 17 Jun 1025) =>
│ ┌── Mieszko II Lambert, King Of Poland ( - May 1034)(m. 1013)
│ │ └── Emnilda of Lusatia (Between 970 and 975 - Between 1013 and 1017) =>
│ │
└── Adelaide of Poland (22 Sep 1013 - Aft 1051)(m. Between 1039 and 1043)
│
│ ┌── Ezzo of Lotharingia (Abt 955 - 21 May 1034) =>
└── Richeza of Lotharingia (Abt 998 - 21 Mar 1063 Saalfield, Thuringia, Germany)(m. 1013)
└── Mathilde von Sachsen (979 - 4 Dec 1025 Echtz, Düren, Germany) =>