*e.g. result unknown or indecisive/inconclusive, result of internal conflict inside Norway, status quo ante bellum, or a treaty or peace without a clear result.
Olav II reconquers any land lost to Sweden excluding Jämtland, Härjedalen and Hälsingland, in which Jämtland and Härjedalen wouldn't be recorded as under Norwegian overlordship until 1111.
The territorial changes following the Battle of Svolder are reversed, barring Jämtland, which would remain under Swedish overlordship until the 12th century.
Through the marriage of Magnus Barefoot and Margaret Fredkulla, Inge's daughter, Norway gains the land of Dalsland. However, due to the marriage being childless, Dalsland never becomes integrated into Norway, and it's returned to Sweden after Magnus died in 1103
Olavinlinna is a 15th-century three-tower castle located in Savonlinna, Finland. It is built on an island in the Kyrönsalmi strait that connects the lakes Haukivesi and Pihlajavesi. It is the northernmost medieval stone fortress still standing. The castle forms a spectacular stage for the Savonlinna Opera Festival, which was held for the first time in the summer of 1912.
The Russo-Swedish War of 1554–1557, considered a prelude to the Livonian War of 1558–1583, arose out of border skirmishes. It ended when the parties agreed on a truce in the Treaty of Novgorod (1557).
The Third Swedish Crusade to Finland was a Swedish military expedition against the pagan Karelians from 1293 to 1295 in which the Swedes successfully expanded their borders eastwards and gained further control of their lands in Finland.
The relations between Denmark and Sweden span a long history of interaction. The inhabitants of each speak related North Germanic languages, which have a degree of mutual intelligibility. Both countries formed part of the Kalmar Union between 1397 and 1523, but there exists an inherited cultural competition between Sweden and Denmark. From 1448 to 1790 the two kingdoms went to war against each other at nearly every opportunity; in more than one case a new king tried to prove his worth by waging war on the other country for little or no political reason. Several Dano-Swedish wars took place between 1521 and 1814.
Canute Porse the Elder or Knud/Knut Porse was a medieval Danish nobleman and Duke of Samsø, Duke of Halland, Duke of Estonia, and Count of Kalundborg.
The Dano-Swedish War from 1501 to 1512 was a military conflict between Denmark and Sweden within the Kalmar Union.
The War of Deposition against King Hans was a conflict in which Swedish separatists under the leadership of the Swedish regent Sten Sture the Elder rebelled against the newly elected king of the Kalmar Union, King Hans.
Ulf Eskil Erik Sundberg is a Swedish economist, historian and author of books and magazine articles.
The War in Gotland (1313), also known as the Tax war against the Gutes, was a short lived conflict fought between the forces of the Swedish King Birger, and the people of Gotland. The primary cause of the war was the high taxes imposed by Sweden on Gotland, which fueled anger and later resulted in the Gotlanders refusing to pay taxes.
The Kalundborg War was a conflict spanning three years between Sweden, Norway and Holstein, and an alliance consisting of Denmark, Lübeck, Hamburg, Rostock, Wismar, Greifswald, and Stralsund. Although Denmark achieved some victories, the war ended favourably for Sweden, Norway and Holstein.
The Attack on Åbo was a Novgorodian attack on the then Swedish city of Åbo in 1318, the Novgorodian goal of capturing the city failed, but they managed to burn the outskirts.
The Battles of Kopparberget and Opphöga ferry were a series confrontations between an insurgent army under Erik Karlsson Vasa and a Dalecarlian army led by Sten Sture the Elder, and Nils Sture at Kopparberget and Opphöga ferry in 1470. The battles resulted in a defeat for the insurgents.
Sten Sture's war against the Totts (Swedish: Sten Stures kamp mot Tottarna or the Fight between Sten Sture and Ivar Axelsson refers to a conflict between forces under Sten Sture the Elder and the Tott family in 1487.
The Siege of Kalundborg, also known as the Siege of Kalundborg Castle, was a siege by Valdemar IV of Denmark on the Norwegian-pledged Kalundborg Castle in 1341 during the Kalundborg War, which is named after the siege. The Danes were forced to retreat after a surprise attack on the Danish camp by Henry II, Count of Holstein-Rendsburg.
The Mecklenburgian invasion of Sweden was a military campaign by led by Duke Albert II of Mecklenburg that took place in 1363–1364, following a rebellion and deposition war against the king of Sweden, Magnus Eriksson. In 1364, Magnus was deposed, and the duke's son Albert III of Mecklenburg was crowned King of Sweden.
↑ Ibn-Adhari, translated in Stefansson, Jon, "The Vikings in Spain. From Arabic (Moorish) and Spanish Sources". In Saga-Book of the Viking Club: Vol. VI Proceedings. University of London King's College, 1909, pp. 40–41.
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Norse Vikings 
