The Peace of Augsburg ( 1555 ) , signed by Charles V , Holy Roman Emperor , confirmed the result of the 1526 Diet of Speyer , ending the war between German Lutherans and Catholics , and establishing that : Although the Peace of Augsburg created a temporary end to hostilities , it did not resolve the underlying religious conflict , which was made yet more complex by the spread of Calvinism throughout Germany in the years that followed .
First , The Peace of Augsburg ( 1555 ) , which was signed quickly by Charles V , agreed with the 1526 Diet of Speyer and stopped the fighting between the Lutherans and the Catholics in Germany .