Nielsen Hayden genealogy
Descendants of Christine Björnsdatter, Queen of Sweden
1125 -Father: Björn Jernside (Abt 1100 - 4 Jun 1134)
Mother: Katharina of Sweden
Christine Björnsdatter, Queen of Sweden (Between 1120 and 1125 - ??)
St. Erik IX, King of Sweden (Abt 1120 - 18 May 1159 Uppsala, Uppsala, Sweden)(m. Bef 1158)
   └─ Canute I Eriksson, King of Sweden ( - 1196)
   
       └─ Erik X Knutsson, King of Sweden (Abt 1180 - 10 Apr 1216)
        Richiza of Denmark ( - 8 May 1220 bur.Ringsted, Zealand, Denmark)(m. 1210)
            + Birger Magnusson (Abt 1200 - 21 Oct 1266)(m. Abt 1235)