Explain how the Peace of Augsburg, the Edict of Nantes, and the Peace of Westphalia all strengthened secular rulers.

The Peace of Augsburg also declared as the Augsburg Settlement was a settlement between Charles V, Holy Roman Emperor, and the Schmalkaldic League, approved in September 1555 at the royal city of Augsburg. It formally closed the spiritual conflict between the two groups and made the judicial division of Christendom permanent inside the Holy Roman Empire, which allowed rulers to accept either Lutheranism or Roman Catholicism as the official declaration of their state.

The Edict of Nantes endorsed in April 1598 by King Henry IV of France, conferred the Calvinist Protestants of France actual rights in the nation, which was still held truly Catholic at the time. In the edict, Henry intended essentially to support civil unity.

Peace of Westphalia, European settlements of 1648, which delivered to an end the Eighty Years' War among Spain and the Dutch and the German period of the Thirty Years' War. The agreement was arranged, from 1644, in the Westphalian cities of Münster and Osnabrück.

All these Treaties aims to strengthen secularism in their countries.

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