What was the cause of the Protestant Reformation? How did it affect Germany and France?

The Protestant Reformation also called the European Reformation was a movement that took place in Europe in the 16th century, it was a movement within the Western Christianity that brought challenge and posed the political and religious Catholic Church. The Protestant Reformation created a branch of Christianity that was called Protestantism which means the social and religious groups that got separated from the the Catholic Church of Rome or from the Roman Catholic Church because of the differences in doctrine.