Alfred the Great was King of Wessex from 871 to c. 886 as well as King of the Anglo-Saxons from c. 886 to 899.
Alfred successfully defended his kingdom against the Viking attempt at conquest, and he turnt into the dominant ruler in England. He was also the first King of the West Saxons to refered to himself King of the Anglo-Saxons.
He was given the epithet "the Great" during and after the Reformation in the sixteenth century.