Nielsen Hayden genealogy
Ancestors of Berchtold IV von Zähringen
Abt 1125 - 1186 (~ 61 years) ┌── Berthold von Villingen ( - 15 Jul 1024)
┌── Bertold IV and I of Carinthia (Abt 1005 - Abt 5 Nov 1078)(m. Abt 1032)
│ └── (Unknown) von Nellenburg
│
┌── Berchtold II of Swabia and Zähringen (Abt 1036 - 12 Apr 1111)
│ │
│ │ ┌── Ernst of Swabia (Abt 970 - 31 May 1015) =>
│ │ ┌── Hermann of Swabia (Abt 1007 - 28 Jul 1038 near Milan, Lombardy, Italy)(m. Abt 1036)
│ │ │ └── Gisele of Swabia (11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany) =>
│ │ │
│ └── Richwara of Swabia ( - Bef 1056)(m. Abt 1032)
│ │
│ │ ┌── Olderich II Manfredo (992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)
│ │ │ (m. Bef 1014) =>
│ └── Adelaide of Susa (Abt 1015 - 27 Dec 1091 Canischio, Turino, Piedmont, Italy)
│ (m. Abt 1036)
│ └── Berta of Este ( - 1029)(m. Bef 1014) =>
│
┌── Konrad I of Zähringen and Burgundy (Abt 1090 - 8 Jan 1152)
│ │
│ │ ┌── Kuno of Rheinfelden ( - 1026)
│ │ ┌── Rudolf von Rheinfelden (Abt 1025 - 15 Oct 1080 Merseburg, Saxony)
│ └── Agnes von Rheinfelden ( - 29 Dec 1111)
│ │
│ │ ┌── Conrad II "The Salic", Holy Roman Emperor ( - 4 Jun 1039 Utrecht, Netherlands)
│ │ │ (m. Bef Feb 1016) =>
│ │ ┌── Heinrich III, Holy Roman Emperor (28 Oct 1016 - 5 Oct 1056 Bodfeld, Harz, Germany)
│ │ │ (m. 21 Nov 1043)
│ │ │ └── Gisele of Swabia (11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany)
│ │ │ (m. Bef Feb 1016) =>
│ │ │
│ └── Mathilde (1045 - 12 May 1060)
│ │
│ │ ┌── William III of Poitou (969 - 31 Jan 1030) =>
│ └── Agnes of Poitou (Abt 1025 - 14 Dec 1077 Rome)(m. 21 Nov 1043)
│ └── Agnes of Burgundy (Abt 995 - 10 Nov 1068 bur.Abbey of St. Nicolas de Poitiers,
│ Vienne, Poitou-Charentes, France) =>
│ Vienne, Poitou-Charentes, France) =>
│
Berchtold IV von Zähringen (Abt 1125 - 8 Dec 1186)
│
│ ┌── Albert I of Namur ( - Between 998 and 1011) =>
│ ┌── Albert II of Namur (Abt 1000 - 1064)
│ │ └── Ermengarde of Lower Lorraine ( - Aft 1012) =>
│ │
│ ┌── Albert III of Namur ( - 22 Jun 1102)(m. Abt 1067)
│ │ │
│ │ └── Regelindis of Lower Lorraine ( - 1064)
│ │
│ ┌── Godfrey of Namur (Between 1067 and 1068 - 19 Aug 1139 Abbey of Floreffe, Belgium)
│ │ └── Ida ( - 31 Jul 1102)(m. Abt 1067)
│ │
└── Clemence de Namur ( - 28 Dec 1158)
│
│ ┌── Frederick I of Luxembourg (965 - 6 Oct 1019)(m. Bef 995) =>
│ ┌── Giselbert of Luxembourg (Abt 1007 - 14 Aug 1059)
│ │ └── (Unknown daughter of Heribert I) (m. Bef 995) =>
│ │
│ ┌── Conrad I of Luxembourg (Abt 1040 - 8 Aug 1086)(m. Abt 1073)
└── Ermisende of Luxembourg (Abt 1080 - 24 Jun 1141)
│
│ ┌── William III of Poitou (969 - 31 Jan 1030) =>
│ ┌── William VII (Abt 1023 - 1058)
│ │ └── Agnes of Burgundy (Abt 995 - 10 Nov 1068 bur.Abbey of St. Nicolas de Poitiers,
│ │ Vienne, Poitou-Charentes, France) =>
│ │ Vienne, Poitou-Charentes, France) =>
│ │
└── Clementia of Aquitaine ( - 4 Jan 1142)(m. Abt 1073)