Nielsen Hayden genealogy
Descendants of Adelaide de Savona
Abt 1075 - 1118 (~ 43 years)Father: Manfredo de Savona
Adelaide de Savona (Abt 1075 - 16 Apr 1118)
Roger I d'Hauteville (1031 - 22 Jun 1101)(m. 1090)
   └─ Roger II, King of Sicily (Between 22 Dec 1095 and 1097 - Between 27 Jan 1154 and 26 Feb 1154)
    Elvira of Castile (Abt 1097 - 1135)(m. 1120)
    :   └─ Roger (Abt 1121 - 12 May 1148)
    :    Bianca de Lecce
    :    :    + Sibilla d'Aquino (Abt 1153 - 27 Mar 1204)
    :    + Elisabeth de Champagne (1130 - ??)(m. Between 1139 and 1140)
    Beatrice de Vitry-RĂ©thel (Between 1130 and 1135 - 31 Mar 1185)(m. 1151)
       └─ Constance of Sicily ( - 27 Nov 1198)
        Heinrich VI, Holy Roman Emperor (Nov 1165 - 28 Sep 1197 Messina, Sicily)
        (m. 27 Jan 1186 Milan, Lombardy, Italy)
        (m. 27 Jan 1186 Milan, Lombardy, Italy)
           └─ Friedrich II, Holy Roman Emperor (26 Dec 1194 - 13 Dec 1250) =>
            + Bianca Lancia (Abt 1212 - ??)
            + (Unknown mistress of Friedrich II)
            + Isabella of England (1214 - 1 Dec 1241)(m. 20 Jul 1235 Worms, Germany)