Swedish Empire - the Great Power Era

Founder of the Swedish Empire – Gustavus II Adolphus
Thirty Years' War (1618–1648).  Sweden managed to conquer approximately half of the member states of the Holy Roman Empire.
The battle of Lützen (1632)
Conclusion of the Thirty Years' War - the Peace of Westphalia in 1648 granted Sweden territories as war reparations…