*Ivar "The Boneless" Ragnarsson King of Dublin & York
born about 0787 Denmark
died 0873 England

father:
*Ragnar "Lodbrok" "Lothrocus" "Hairy Britches" Sigurdsson King of Dacia (Denmark)
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
*Sigurd "Snake-Eye" Ragnarsson born about 0786 Denmark
Hvitserk Ragnarsson born about 0790 Denmark
Rognvald Ragnarsson born about 0791 Denmark
*Halfdan "White Shirt" Ragnarsson King of Dublin died 0877 Ireland
Ragnhildir Ragnardottir
Alof Ragnardottir
Ubbe Ragnarsson

spouse:
unknown

children:
Sigfrid Ivarsson King of Dublin born 0835 died 0888
*Sitric Ivarsson King of Dublin born 0837
died 0896
Guthorm Ivarsson born 0839 died 0890

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com
"Biographical Encyclopedia of the Kings & Queens of Great Britain" by Mike Ashley