The peace of Augsburg, which was signed in 1555, ended the religious conflict between the Catholics and the Lutherans in the Holy Roman Empire. It established the principle "cuius regio, eius religio" which meant that the religion of the ruler of a territory would determine the religion of that territory. This allowed for Lutherans to worship freely in areas ruled by Lutheran princes, and Catholics to worship freely in areas ruled by Catholic princes. Therefore, the peace of Augsburg accomplished the establishment of the principle of religious tolerance within the Holy Roman Empire.
