King of Denmark and Norway (r. 1513–1523), King of Sweden (r. 1520–1521)
Christian II (1 July 1481 – 25 January 1559), a monarch under the Kalmar Union, reigned as King of Denmark and Norway from 1513 until 1523. He was briefly King of Sweden from 1520 until 1521. As king of Denmark and Norway, he was concurrently Duke of Schleswig and Holstein in joint rule with his uncle Frederick. As king, Christian tried to maintain the Kalmar Union between the Scandinavian countries which brought him to war with Sweden, lasting between 1518 and 1523.
https://en.wikipedia.org/wiki/Christian_II_of_Denmark
Christian II (1 July 1481 – 25 January 1559), a monarch under the Kalmar Union, reigned as King of Denmark and Norway from 1513 until 1523. He was briefly King of Sweden from 1520 until 1521. As king of Denmark and Norway, he was concurrently Duke of Schleswig and Holstein in joint rule with his uncle Frederick. As king, Christian tried to maintain the Kalmar Union between the Scandinavian countries which brought him to war with Sweden, lasting between 1518 and 1523.
