Ragnar Lodbrok the Battle of Ashdown on 8 January 871, where Bagsecg was killed. Halfdan accepted a truce from the future Alfred the Great, newly crowned king of Wessex. Halfdan succeeded Bagsecg as King of most of Denmark (Jutland and Wendland) in about 871. Bjorn Ironside became King of Sweden and Uppsala in about 865, (the same year his father Ragnar is said to have died). Bjorn had two sons, Refil and Erik Björnsson. His son Erik became the next king of Sweden, and was succeeded in turn by Erik the son of Refil. Sigurd Snake-in-the-eye became King of Zealand and the
Battle of Ashdown the surrounding countryside. Alfred reputedly took his favourite white mare and rode up onto Blowingstone Hill (near Kingston Lisle), where stood an ancient perforated sarsen stone, called the "Blowing Stone". Anyone with the appropriate skill could generate a booming sound from this stone, by blowing into one of its holes. Alfred took a deep breath and was able to sound the alarm across the downs. All over the surrounding country, men were woken and gathered to defend their homes. In late 870, King Ethelred led the army of Wessex against the Danes in their stronghold at Reading. The attack failed,