Answer:
It recognized the right of kingdoms to practice Protestantism
Explanation:
The so-called Peace of Westphalia (also Westphalia), also known as the Treaties of Münster and Osnabruque (both cities currently in Germany), designates a series of treaties that ended the Thirty Years' War and also officially recognized the United Provinces and the Swiss Confederation.
The Peace of Westphalia established the principles that characterize the modern state, with emphasis on sovereignty, legal equality among states, territoriality and non-intervention.
The peace talks, after the initial talks, were held in the cities of Münster and Osnabruque as an alternative favored by Sweden, while Hamburg and Cologne were the French alternatives. Both localities were necessary, since Protestant and Catholic leaders refused to meet (the Protestants stayed in Osnabruque, the Catholics in Münster).
