The Dano-Swedish War was the first war between Denmark and Sweden. The Danes invaded Sweden by sea, but were defeated early at the Battle of Brunkeberg, in which King Christian I of Denmark was wounded by a cannonball. The Danish invasion was repelled, and the Swedes were independent from the Kalmar Union. Background Queen Margaret I of Denmark created the Kalmar Union (Denmark, Norway, and Sweden) under her rule with Sweden joining voluntarily. After a few years, however, secessionist movements arose among the Swedish noble's council, led by Karl Knutsson Bonde. Sweden became independent and was then re-occupied by Denmark, only to gain its independence again. When King Karl died, the Swedish council elected Sten Sture the Elder as viceroy. Christian I of Denmark then declared war to re-establish the Kalmar Union. Campaign King Christian I had 3,000 Danish troops and 2,000 allied Germans. Sture had only about 400 troops in his army, and the Danish could easily pick a fight. In late July 1471, the fleet of 76 Danish ships with the 5,000 troops set out from Copenhagen harbour to land in southern Sweden. Sture and Nils Bosson Sture went to central Sweden to gather as many men as they could for the defense of Stockholm. The Danish fleet would have to face the murderous flow of the archipelago that blocked off Stockholm, but managed, possibly with the help of a hired Swedish pilot, to anchor between Käpplingeholm and Wolf's Island (Vargö) just across the water from Stockholm Castle. Christian decided that a siege would take too long, so he landed in southern Sweden instead. Sten Sture awaited the Danes, now with 10,000 levied peasants. The Battle of Brunkeberg On Thursday, October 10, Sten Sture and Nils Bosson Sture lead their troops north to the area which is Hötorget in Stockholm today, near Brunkeberg after which the battle was named. Sten Sture's battle plan was to trap Christian's troops in a vice; Sten would attack from the west, Nils from the east, and Knut Posse would strike out from the city itself. Nils flanked Christian's Army, and delivered a knockout blow. In Sten's sector, he kept on charging again and again, and managed to break through. In the ensuing battle, Christian was hit in the face by musket fire. Losing several teeth, he was forced to retire from battle. The decisive turn of battle in favor of Sture's side