The Battle of Stamford Bridge took place on 25 September 1066, between an English army under King Harold Godwinson and a Norwegian army under King Harald Hardrada and Tostig Godwinson, Harold's exiled brother. The battle was a decisive victory for the English, who killed both Harald and Tostig. However, the English army was severely weakened by the battle and was defeated by the Normans at the Battle of Hastings two weeks later.