The two groups that were fighting religious wars throughout Europe in the 1700s was protestant and the Catholics.
Step-by-step explanation:
During the time of 1700s, there were two religious groups in Europe who were fighting against each other. This conflict was mostly because of the difference in the beliefs of both the groups.
These groups were the protestants and the Catholics. By the time of 1700s, the protestants had become more powerful in the countries as compared to the Catholics even in the financial terms in those countries.