Battle of Niså

Battle of Niså
Part of Harald Hardrada's invasions of Denmark

Norwegian ships spotting the Danish ships in the horizon, as imagined by Wilhelm Wetlesen (1899)
Date9 August 1062
Location
Nissan river, Halland, Denmark (modern-day Sweden)
Result Norwegian victory
Belligerents
Kingdom of Denmark Kingdom of Norway
Commanders and leaders
Sweyn Estridsson
Finn Arnesson (POW)
Harald Hardrada
Haakon Ivarsson
Strength
300 ships (sagas)
less than Harald (Saxo)
150 ships
Casualties and losses
70 ships cleared of men
Remainder retreated
Unknown

The Battle of Niså (Slaget ved Niså) was a naval battle fought on 9 August 1062 between the forces of Norwegian king Harald Hardrada and king Sweyn II of Denmark. Harald had claimed the Danish throne since 1047, and had launched raids into Denmark ever since. With his invasion in 1062, he wanted to decisively defeat the Danes, and thus finally be able to conquer Denmark. The battle was won clearly by the Norwegians, but since many Danes managed to escape, including Sweyn, it proved indecisive in Harald's attempt to conquer Denmark.