The Battle of Bogesund was an important conflict in the campaign of Christian II to gain power over Sweden. In 1520, Christian's army of mercenaries had landed in Sweden, seeking to consolidate Christian's powers over Sweden within the Kalmar Union and to unseat the rebellious Swedish viceroy Sten Sture the Younger. On the ice of lake Åsunden near Bogesund, Christian's army led by Otte Krumpen was intercepted by a force led by Sten Sture. The anti-union resistance was continued by Sture's widow Christina Gyllenstierna and ultimately Gustav Vasa.