Nielsen Hayden genealogy
Frederick of Formbach
Abt 1020 - Abt 1060 (~ 40 years)(
= Descendancy chart to this point, 
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- 1 Frederick of Formbach [1] b. Abt 1020 d. Abt 1060
- Gertrude von Haldensleben d. 21 Feb 1116
- 2 Hedwig of Formbach [1.1] d. Between 1085 and 1090
- Thierri II of Lorraine d. 1115
- 3 Petronella de Lorraine [1.1.1] d. 24 May 1144
- Floris II "the Fat" of Holland d. 2 Mar 1121
- 4 Dirk VI of Holland [1.1.1.1] b. Abt 1114 d. 5 Aug 1157
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- 4 Dirk VI of Holland [1.1.1.1]
- 3 Simon I of Lorraine [1.1.2] b. Abt 1076 d. 14 Jan 1138
- Adelaide of Louvain d. Aft 4 Nov 1158
- 4 Agatha of Lorraine [1.1.2.1] d. 1147
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- 4 Bertha of Lorraine [1.1.2.2] d. Aft 1162
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- 4 Matthias I of Lorraine [1.1.2.3] b. Abt 1119 d. 13 May 1176
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- 4 Agatha of Lorraine [1.1.2.1]
- 3 Petronella de Lorraine [1.1.1]
- Gebhard d. 9 Jun 1075
- 3 Lothar II von Süpplinburg, Holy Roman Emperor [1.1.3] b. Bef 9 Jun 1075 d. 4 Dec 1137
- Richenza von Northeim d. 10 Jun 1141
- 4 Gertrud von Süpplinburg [1.1.3.1] b. 18 Apr 1115 d. Abt 18 Apr 1143
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- 4 Gertrud von Süpplinburg [1.1.3.1]
- 3 Lothar II von Süpplinburg, Holy Roman Emperor [1.1.3]
- 2 Hedwig of Formbach [1.1]