Battle of Lützen
The Battle of Lützen (6 November 1632) was one of the most decisive battles of the Thirty Years' War. It was a Protestant victory, but the Protestant alliance lost one of its most important leaders, which caused the Protestant campaign to lose direction. Gustavus Adolphus was killed when, at a crucial point in the battle, he became separated from his troops while leading a cavalry charge on his wing.