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.
Haakon V of Norway Haakon V Magnusson (10 April 1270 - 8 May 1319) (Old Norse: "Hákon Magnússon"; Norwegian: "Håkon Magnusson") was king of Norway from 1299 until 1319.