*Halfdan "White Shirt" Ragnarsson King of Dublin
died 0877 Ireland

father:
*Ragnar "Lodbrok" Lothrocus King of Dacia (Denmark) Sigurdson
born about 0765 Uppsala, Sweden
died 0845 England

mother:
*Aslaug Sigurdsdotter
born about 0765 Denmark
married about 0783 Denmark

siblings:
*Bjorn "Ironside" Ragnarsson born Denmark
*Ivar "The Boneless" Ragnarsson King of Dublin & York born about 0787 Denmark
died 0873 England
*Sigurd "Snake-Eye" Ragnarsson born about 0786 Denmark
Hvitserk Ragnarsson born about 0790 Denmark
Rognvald Ragnarsson born about 0791 Denmark
Ragnhildir Ragnardottir
Alof Ragnardottir
Ubbe Ragnarsson

spouse:
unknown

children:
*Sitric I (Sigtryggr) Halfdansson King of Dublin
born about 0860
died 0896

biographical and/or anecdotal:

notes or source:
ancestry.com