Sigismund III Vasa, who was already King of Poland, succeeded his father John III as King of Sweden.

Sigismund III Vasa

Ruler of Poland-Lithuania from 1587 to 1632 and of Sweden from 1592 to 1599

Sigismund III Vasa was King of Poland and Grand Duke of Lithuania from 1587 to 1632 and, as Sigismund, King of Sweden from 1592 to 1599. He was the first Polish sovereign from the House of Vasa. Religiously zealous, he imposed Catholicism across the vast realm, and his crusades…

List of Polish monarchs

Poland was ruled at various times either by dukes and princes or by kings. During the latter period, a tradition of free election of monarchs made it a uniquely electable position in Europe.

John III of Sweden

King of Sweden from 1569 to 1592

John III was King of Sweden from 1569 until his death. He attained the Swedish throne after a rebellion against his half-brother Erik XIV. He is mainly remembered for his attempts to close the gap between the newly established Lutheran Church of Sweden and the Catholic Church,…

List of monarchs of Sweden

This list records the monarchs of Sweden, from the late Viking Age to the present day. Sweden has continuously been a monarchy since the country's consolidation in the Viking Age and early Middle Ages, for over a thousand years. The incumbent royal dynasty of Sweden is the House…