Ivar the Boneless was the brother of which 9th century Viking chieftain?
Ivar the Boneless Ivar the Boneless (Old Norse: "Ívarr hinn Beinlausi" ; ) was a Viking leader and a commander who invaded what is now England. According to the "Tale of Ragnar Lodbrok", he was the son of Ragnar Lodbrok and Aslaug. His brothers included Björn Ironside, Halfdan Ragnarsson, Hvitserk, Sigurd Snake-in-the-Eye and Ubba.
Bjalfi Bjalfi was a ninth-century Norwegian hersir. He married Hallbera Ulfsdattir, the daughter of Ulf the Brave and sister of Hallbjorn Halftroll. With Hallbera Bjalfi was the father of Kveldulf Bjalfasson.