Earl Sigurd Halfdansson of Ringerik
Sigurd Halfdansson of Ringerik was born about 0970 in , Ringerik, Norway.  He died about 1018.

 Astrid Gudbrandsdatter of Uplands
Astrid Gudbrandsdatter of Uplands was born about 0972 in Vestfold, Norway.

 Halfdan Sigurdsson
Halfdan Sigurdsson was born in , Ringerike, Norway.  He died before 1047.