In the battle for the Swedish crown, Finnish castles were also conquered and persuaded to the union king's side.
The Danish knight Erik Axelsson Tott came with his brothers to conquer castles in the 1480s, and in the end, all the castles were under the power of the Axelssons.
After Erik's death he left the Vyborg, Hämeenlinna and Savonlinna counties to his brothers Ivar and Lauri, who already ruled over Raseborg.
However, the formation of a continuous circle of power did not fit to the regent Sten Sture's plans.
In 1481 Sten Sture arrived in Finland, all the way to Vyborg.
The regent and the local governors could not come to an agreement: the regent promised tax cuts to the people; the local landowners could not accept this.

In the end of the union times, no regent had universal acceptance from all the Nordic countries any more.
The King of Denmark John (reigned 1481–1513) was not accepted in the union countries, and the councils took power into their own hands.
In 1483 Sten Sture received power over three counties in Finland: Vyborg, Savonlinna and Hämeenlinna.
The former realm of the Axelssons became the regent's support area and Finland became an even more integral part of the central government; especially as even Raseborg came to the power of Sten Sture's supporter Knut Posse.
Sture did not distribute the castles to the nobility, but ruled over them through officials dependent on him, gathering a significant amount of tax income to himself.
In the battle for the Swedish crown, Finnish castles were also conquered and persuaded to the union king's side. The Danish knight Erik Axelsson Tott came with his brothers to conquer castles in the 1480s, and in the end, all the castles were under the power of the Axelssons. After Erik's death he left the Vyborg, Hämeenlinna and Savonlinna counties to his brothers Ivar and Lauri, who already ruled over Raseborg. However, the formation of a continuous circle of power did not fit to the regent Sten Sture's plans. In 1481 Sten Sture arrived in Finland, all the way to Vyborg. The regent and the local governors could not come to an agreement: the regent promised tax cuts to the people; the local landowners could not accept this.
In the end of the union times, no regent had universal acceptance from all the Nordic countries any more. The King of Denmark John (reigned 1481–1513) was not accepted in the union countries, and the councils took power into their own hands. In 1483 Sten Sture received power over three counties in Finland: Vyborg, Savonlinna and Hämeenlinna. The former realm of the Axelssons became the regent's support area and Finland became an even more integral part of the central government; especially as even Raseborg came to the power of Sten Sture's supporter Knut Posse. Sture did not distribute the castles to the nobility, but ruled over them through officials dependent on him, gathering a significant amount of tax income to himself.
Finland under Swedish rule