While previous episodes have dissected the myth of Ragnar himself, his raids on Paris, and his enigmatic death in the serpent pit, Episode 240 turns to the immediate, violent aftermath. We explore how the death of a semi-legendary figure triggered the largest Viking invasion force ever seen in England. We trace the formation of the Great Heathen Army, led by Ragnar’s sons Ivar the Boneless, Halfdan, and Ubba, as they marched on Northumbria in 865 AD. This was not a raid; it was a conquest. We examine the political vacuum in Anglo-Saxon England, the failure of the Danegeld to buy peace, and the brutal capture and execution of King Ælla of York. Through the lens of the Anglo-Saxon Chronicle and Fragmentary Annals, we separate saga embellishment from historical reality, looking at how these brothers established the Danelaw and permanently altered the map of Britain. Join us as we move from the legend of the shaggy breeches to the concrete bloodshed that defined the late ninth century.