On the 5th January 1066, Edward the Confessor died, leaving England in chaos.
Three contenders emerge to compete for the throne, Harold Godwinson, Harald Hardrada, and William Duke of Normandy.
It was a three-way battle royal for the crown of England: Anglo-Saxon vs Viking vs Norman.
Who would emerge victorious?
In this video, Henry talks you through the key events including The Battle of Stamford Bridge and The Battle of Hastings.