Gustav I (born Gustav Eriksson of the Vasa noble family; 12 May 1496 – 29 September 1560), commonly known as Gustav Vasa, was King of Sweden from 1523 until his death in 1560, previously self-recognised Protector of the Realm (Riksföreståndare) from 1521, during the ongoing Swedish War of Liberation against King Christian II of Denmark, Norway and Sweden. Gustav rose to lead the Swedish War of Liberation following the Stockholm Bloodbath, where his father was executed.
https://en.wikipedia.org/wiki/Gustav_Vasa