Nielsen Hayden genealogy
Ancestors of Konrad I of Zähringen and Burgundy
Abt 1090 - 1152 (~ 62 years)
┌── Berthold von Villingen 
( - 15 Jul 1024)
( - 15 Jul 1024) ┌── Bertold IV and I of Carinthia (Abt 1005 - Abt 5 Nov 1078)(m. Abt 1032)
(Abt 1005 - Abt 5 Nov 1078)(m. Abt 1032) │ └── (Unknown) von Nellenburg
│
┌── Berchtold II of Swabia and Zähringen (Abt 1036 - 12 Apr 1111)
(Abt 1036 - 12 Apr 1111) │ │
│ │ ┌── Leopold von Babenberg (Abt 940 - 984)
(Abt 940 - 984) │ │ ┌── Ernst of Swabia (Abt 970 - 31 May 1015)
(Abt 970 - 31 May 1015) │ │ │ └── Richardis (Between 945 and 950 - Abt 994)
(Between 945 and 950 - Abt 994) │ │ │
│ │ ┌── Hermann of Swabia (Abt 1007 - 28 Jul 1038 near Milan, Lombardy, Italy)(m. Abt 1036)
(Abt 1007 - 28 Jul 1038 near Milan, Lombardy, Italy)(m. Abt 1036) │ │ │ │
│ │ │ │ ┌── Hermann II of Swabia ( - 4 May 1003)(m. Abt 988) =>
( - 4 May 1003)(m. Abt 988) => │ │ │ └── Gisele of Swabia (11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany)
(11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany) │ │ │ └── Gerberga of Burgundy ( - Aft 1016)(m. Abt 988) =>
( - Aft 1016)(m. Abt 988) => │ │ │
│ └── Richwara of Swabia ( - Bef 1056)(m. Abt 1032)
( - Bef 1056)(m. Abt 1032) │ │
│ │ ┌── Manfred I of Turin ( - Abt 1000)(m. Aft 962) =>
( - Abt 1000)(m. Aft 962) => │ │ ┌── Olderich II Manfredo (992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)(m. Bef 1014)
(992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)(m. Bef 1014) │ │ │ └── Prangardia di Canossa (of Canossa, Italy - ??)(m. Aft 962) =>
(of Canossa, Italy - ??)(m. Aft 962) => │ │ │
│ └── Adelaide of Susa (Abt 1015 - 27 Dec 1091 Canischio, Turino, Piedmont, Italy)(m. Abt 1036)
(Abt 1015 - 27 Dec 1091 Canischio, Turino, Piedmont, Italy)(m. Abt 1036) │ │
│ │ ┌── Oberto Obizzo II of Este (Abt 950 - 1014) =>
(Abt 950 - 1014) => │ └── Berta of Este ( - 1029)(m. Bef 1014)
( - 1029)(m. Bef 1014) │ └── Railende du Como
│
Konrad I of Zähringen and Burgundy (Abt 1090 - 8 Jan 1152)
│
│ ┌── Kuno of Rheinfelden ( - 1026)
( - 1026) │ ┌── Rudolf von Rheinfelden (Abt 1025 - 15 Oct 1080 Merseburg, Saxony)
(Abt 1025 - 15 Oct 1080 Merseburg, Saxony) └── Agnes von Rheinfelden ( - 29 Dec 1111)
( - 29 Dec 1111) │
│ ┌── Henry of Speyer (Abt 968 - 989 bur.Worms Cathedral, Worms, Germany) =>
(Abt 968 - 989 bur.Worms Cathedral, Worms, Germany) => │ ┌── Conrad II "The Salic", Holy Roman Emperor ( - 4 Jun 1039 Utrecht, Netherlands)
( - 4 Jun 1039 Utrecht, Netherlands) │ │ (m. Bef Feb 1016)
│ │ └── Adelaide of Alsace =>
=> │ │
│ ┌── Heinrich III, Holy Roman Emperor (28 Oct 1016 - 5 Oct 1056 Bodfeld, Harz, Germany)
(28 Oct 1016 - 5 Oct 1056 Bodfeld, Harz, Germany) │ │ (m. 21 Nov 1043)
│ │ │
│ │ │ ┌── Hermann II of Swabia ( - 4 May 1003)(m. Abt 988) =>
( - 4 May 1003)(m. Abt 988) => │ │ └── Gisele of Swabia (11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany)
(11 Nov 995 - 14 Feb 1043 Goslar, Lower Saxony, Germany) │ │ (m. Bef Feb 1016)
│ │ └── Gerberga of Burgundy ( - Aft 1016)(m. Abt 988) =>
( - Aft 1016)(m. Abt 988) => │ │
└── Mathilde (1045 - 12 May 1060)
(1045 - 12 May 1060) │
│ ┌── William II of Poitou (935 - 3 Feb 993)(m. 968) =>
(935 - 3 Feb 993)(m. 968) => │ ┌── William III of Poitou (969 - 31 Jan 1030)
(969 - 31 Jan 1030) │ │ └── Emma of Blois (950 - Abt 1003)(m. 968) =>
(950 - Abt 1003)(m. 968) => │ │
└── Agnes of Poitou (Abt 1025 - 14 Dec 1077 Rome)(m. 21 Nov 1043)
(Abt 1025 - 14 Dec 1077 Rome)(m. 21 Nov 1043) │
│ ┌── Otto-William of Burgundy (Bef 962 - Bef 21 Sep 1026 bur.Dijon Cathedral, Dijon,
│ │ Côte-d'Or, Burgundy, France) =>
(Bef 962 - Bef 21 Sep 1026 bur.Dijon Cathedral, Dijon, │ │ Côte-d'Or, Burgundy, France) =>
└── Agnes of Burgundy (Abt 995 - 10 Nov 1068 bur.Abbey of St. Nicolas de Poitiers, Vienne,
Poitou-Charentes, France)
(Abt 995 - 10 Nov 1068 bur.Abbey of St. Nicolas de Poitiers, Vienne, Poitou-Charentes, France)
└── Ermentrude de Roucy (Abt 950 - 5 Mar 1002) =>
(Abt 950 - 5 Mar 1002) =>