Nielsen Hayden genealogy
Descendants of Prangardia di Canossa
Father: Adalbert Atto di Canossa (of Canossa, Italy - 13 Feb 988)
Mother: Hildegard
Prangardia di Canossa (of Canossa, Italy - ??)
Manfred I of Turin ( - Abt 1000)(m. Aft 962)
   └─ Olderich II Manfredo (992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)
    Berta of Este ( - 1029)(m. Bef 1014)
       ├─ Bertha of Turin
       │ Otto of Savona ( - Between Sep 1064 and 12 May 1065)(m. Abt 1036)
       │    │ +
       │    └─ Boniface del Vasto (Abt 1060 - Between 1125 and 1130) =>
       │     + Agnes de Vermandois ( - Aft 1125)(m. Aft 1111)
       ├─ Irmingard de Susa ( - 28 Jan 1078)
       │ Otto of Swabia and Schweinfurt (Abt 1002 - 28 Sep 1057)
       │ :   │ + Boto von Pottenstein ( - 1 Mar 1104)
       │ :   │ + Berthold III von Andechs
       │ :    + Heinrich
       │ Ekbert I of Brunswick (Abt 1036 - 11 Jan 1068)(m. 1058)
       │     + Heinrich von Northeim (Abt 1051 - Bef 10 Apr 1101)
       └─ Adelaide of Susa (Abt 1015 - 27 Dec 1091 Canischio, Turino, Piedmont, Italy)
        Hermann of Swabia (Abt 1007 - 28 Jul 1038 near Milan, Lombardy, Italy)(m. Abt 1036)
        :    + Bertold IV and I of Carinthia (Abt 1005 - Abt 5 Nov 1078)(m. Abt 1032)
        Otto I of Savoy ( - Between 19 Jan 1057 and 1060)(m. Abt 1046)
           │ + Joan of Geneva ( - Abt 1095)(m. Between 1065 and 1070)
           ├─ Bertha of Turin (1051 - 27 Dec 1087 Mainz, Hessen, Germany) =>
           │ + Heinrich IV, Holy Roman Emperor (11 Nov 1050 Goslar, Lower Saxony, Germany -
           │ 7 Aug 1106 Liège, Belgium)(m. 13 Jul 1066)
           │ 7 Aug 1106 Liège, Belgium)(m. 13 Jul 1066)
            + Rudolf von Rheinfelden (Abt 1025 - 15 Oct 1080 Merseburg, Saxony)(m. 1067)