Battle of Hjörungavágr

The Battle of Hjörungavágr is a semi-legendary naval battle that took place in the late 10th century between the Jarls of Lade and a Danish invasion fleet led by the fabled Jomsvikings. This battle played an important role in the struggle by Haakon Sigurdsson to unite his rule over Norway. Traditionally, the battle has been set during the year 986.

During this period, Denmark was the dominant power in the Nordic region. Southern Norway and the Oslo Fjord sometimes lay directly under Danish rule. Haakon Sigurdsson ruled Norway as a vassal of King Harald Bluetooth of Denmark , but for the most part seemed to remain an independent ruler. Haakon was a strong believer in the old Norse gods. When Harald Bluetooth attempted to force Christianity upon him around 975, Haakon broke his allegiance to Denmark.
Harald Bluetooth had suffered defeat from Otto II, Holy Roman Emperor during 974. Haakon took advantage of the weakened position of the Danish king to make Norway independent of Denmark. With the convincing victory, Haakon Sigurdsson remained Norway's sole ruler and Denmark's claim over Norway was rejected and not repeated again until the Battle of Svolder about fourteen years later.

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