Ivar the Boneless was the brother of which 9th century Viking chieftain?
Ubba Ubba, also known as Hubba, Ubbe, and Ubbi, was a mid-ninth-century Viking chieftain and one of the commanders of the Great Army, a coalition of Norse warriors that in AD 865 invaded the Anglo-Saxon kingdoms of Northumbria, Mercia, East Anglia and Wessex.
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.