Final answer:
The Peace of Westphalia (1648) brought an end to the religious warfare in Germany by establishing peace and independence for the entities within the Holy Roman Empire.
Step-by-step explanation:
The agreement that brought an end to the religious warfare in Germany was the Peace of Westphalia (1648). This treaty ended the Thirty Years' War between Catholic and Protestant states in the Holy Roman Empire. It established the independence of the entities that made up the Holy Roman Empire and helped establish peace and stability in Central Europe.