Who controlled the Scandinavian region between 1397 and 1523?

Between 1397 and 1523, the Scandinavian region was primarily controlled by the Kalmar Union, which united the kingdoms of Denmark, Norway, and Sweden under a single monarch. This union was established in 1397 under Queen Margaret I of Denmark. However, the union faced significant internal conflicts and resistance, particularly from Sweden, which sought greater autonomy. Ultimately, the Kalmar Union dissolved in 1523, leading to Sweden's independence.