Harold Godwinson (c.1022 – 14 October 1066), also called Harold II, was the last crowned Anglo-Saxon English king. Harold reigned from 6 January 1066[1] until his death at the Battle of Hastings on 14 October 1066, the decisive battle of the Norman Conquest. Harold's death marked the end of Anglo-Saxon rule over England. He was succeeded by William the Conqueror.

Harold Godwinson was a member of a prominent Anglo-Saxon family with ties to Cnut the Great. He became a powerful earl after the death of his father, Godwin, Earl of Wessex. After his brother-in-law, King Edward the Confessor, died without an heir on 5 January 1066, the Witenagemot convened and chose Harold to succeed him; he was probably the first English monarch to be crowned in Westminster Abbey.
In late September, he successfully repelled an invasion by rival claimant Harald Hardrada of Norway in York before marching his army back south to meet William at Hastings two weeks later.

Harald Sigurdsson (Old Norse: Haraldr Sigurðarson; c. 1015 – 25 September 1066), also known as Harald Hardrada or Harald III, was King of Norway from 1046 to 1066. He unsuccessfully claimed the Danish throne until 1064 and the English throne in 1066. Before becoming king, Harald spent 15 years in exile as a mercenary and military commander in Kievan Rus' and chief of the Varangian Guard in the Byzantine Empire. In his chronicle, Adam of Bremen called him the "Thunderbolt of the North".[2]

In 1030, the fifteen-year-old Harald fought in the Battle of Stiklestad alongside his half-brother Olaf Haraldsson. Olaf sought to reclaim the Norwegian throne, which he had lost to Danish king Cnut two years previously. Olaf and Harald were defeated by forces loyal to Cnut, and Harald was forced into exile to Kievan Rus'. Thereafter, he was in the army of Grand Prince Yaroslav the Wise, becoming captain, until he moved on to Constantinople with his companions around 1034. In Constantinople, he rose quickly to become the commander of the Byzantine Varangian Guard, seeing action on the Mediterranean Sea, in Asia Minor, Sicily, possibly in the Holy Land, Bulgaria and in Constantinople itself, where he became involved in the imperial dynastic disputes. Harald amassed wealth whilst in the Byzantine Empire, which he shipped to Yaroslav in Kievan Rus' for safekeeping. In 1042, he left the Byzantine Empire, returning to Kievan Rus' to prepare to reclaim the Norwegian throne. In his absence the Norwegian throne had been restored from the Danes to Olaf's illegitimate son Magnus the Good.

According to various chroniclers, on a journey to the continent that Harold made a few years earlier (most sources date it to 1064), the Saxon arrived in Normandy and there swore the oath of obedience to William as successor to the English throne when Edward's death occurred. However, this fact (which William would use repeatedly as one more argument for his invasion of England) clashed head-on with Harold's aspirations to the English throne and, above all, with his previous and subsequent events, which in no way hinted that he had any intention to cede the crown to the Norman.