Nielsen Hayden genealogy
Descendants of Ulf Thorgilsson
- 1026Father: Thorkill Sprakalaeg ( - Abt 1009)
Ulf Thorgilsson ( - 25 Dec 1026 Trinity Church, Roskilde, Zealand, Denmark)
Estrid, Queen of Denmark (Abt 990 - Between 1057 and 1073)
   └─ Swein II Estridsson, King of Denmark (Abt 1026 England -
    Apr 1074 Søderup, near Åbenrå, Sonderjylland, Denmark)
    Apr 1074 Søderup, near Åbenrå, Sonderjylland, Denmark)
   
       ├─ St. Canute IV, King of Denmark (Abt 1043 - 10 Jul 1086)
       │ Adele of Flanders (Between 1064 and 1065 - Apr 1115)(m. Abt 1081)
       │    └─ Ingegerd of Denmark (Between 1081 and 1085 - ??) =>
       │     + Folke (Abt 1075 - ??)
       └─ Erik I, King of Denmark (Abt 1060 Slangerup, North Zealand, Denmark - 10 Jul 1103 Paphos, Cyprus)
        (Unknown mistress of Erik "The Good" of Denmark)
        :    + Ragnhild of Norway
        Boedil Thorgunnasdotter (Abt 1062 - 1103 near Jerusalem)(m. Bef 1086)
           └─ St. Canute Lavard (1096 Roskilde, Zealand, Denmark -
            7 Jan 1131 Haraldsted forest, near Ringsted, Zealand, Denmark) =>
            7 Jan 1131 Haraldsted forest, near Ringsted, Zealand, Denmark) =>
            + Ingeborg of Kiev (Abt 1100 - ??)(m. Abt 1116)