The wars of the Renaissance produced many famous commanders, including Frederick the Great, Gustavus Adolphus and Marlborough. They were highly skilled and developed the art of warfare to a new technical level.
The Renaissance is an age well known for the skill of the “Great Captains” that fought in these wars :-
Gustavus Adolphus was champion of the Protestant cause during the Thirty Years War. Known as the “Lion of the North”, his reforms created a professional army that was widely copied. For a time Sweden became one of the great European powers.