Gustavus Adolphus, the "Lion of the North," reigned as King of Sweden from 1611 to 1632. Known for his military prowess and religious tolerance, Gustavus transformed Sweden into a major European power. He fought successfully in the Thirty Years' War, leading Protestant forces against the Holy Roman Empire. His innovative military reforms, including the introduction of lighter artillery and organized infantry formations, revolutionized warfare. Gustavus's reign marked the height of Swedish military power, and his legacy as Sweden's greatest king is secure.
