They served both sides, sometimes it just depended on whose land was where.
As more and more modern things were being implemented into society people found a need for change. A change to modern times. Some modern activites which cause this such as trade and wealth were becoming more popular therefore causing more modern adjustment which caused the Renaissance.
Greek mythology served to explain everyday phenomena that the Greeks had no other explanation for. Their main religion, it gave them “rational” answers before the emergence of natural science.
Hope this helps :)
