 Complete the following phrase:  The religious nature of the wars has also been debated, and contrasted with other factors at play, such as national, dynastic e.g. they could often simultaneously be characterised as wars of succession, and ficial interests. Scholars have pointed out that some European wars of this period were not caused by disputes occasioned by the Reformation, such as the Italian Wars 14941559, only involving Catholics and the Northern Seven Years War 15631570, only involving Lutherans. Others emphasise the fact that cross-religious alliances existed, such as the Lutheran duke Maurice of Saxony assisting the Catholic emperor Charles V in the first 