Who was Ivar the Boneless, the famous Viking king?

Ivar Ragnarsson, also known as Ivar the Boneless, was a Viking chieftain of Danish origin and the ruler of areas that today belong to Denmark and Sweden. 

Who was Olaf Guthfrithson, the Viking warlord who became King of

Vikings: Every King, Ranked Worst To Best

Ivar the Boneless

Ivar The Boneless, The Viking Warrior Who Invaded Medieval England

Ivar the Boneless - Vikings Cast

Vikings (TV Series 2013–2020) - IMDb

Vikings season 6 part 2: Why didn't King Alfred kill Ivar at the

10 Facts About Viking Warrior Ivar the Boneless

Ivar the Boneless: How a Disabled Viking Warrior Conquered England

5 of the Great Viking Warriors - Viking Style