Thirty Years War
Swedish Intervention
Gustavus Adolphus
1630 Jan 2

Swedish Intervention


Sweden’s Protestant king, Gustavus Adolphus, decided to get involved in defending the Protestants in the Holy Roman Empire. However, France’s Catholic chief minister and Catholic Cardinal Richelieu were getting nervous about the increased power of the Hapsburgs. Richelieu's helped negotiate the Truce of Altmark between Sweden and Polish–Lithuanian Commonwealth , freeing Gustavus Adolphus to enter the war.