Let’s take Martin Luther for example. He formed his own denomination of Christianity – the Protestantism. Catholicism is also a denomination of Christianity. Therefore, Luther’s new “religion” was a threat to the church, which was the government back then.

http://www.auburn.edu/~smithr5/public_html/purpose_of_history/01Manchester_The_Medieval_Mind.pdf

p.s here is the first part of the article, in the last page he mentions these names and the dragons. What i could understand so far, by reading two lines, is that the Church tried to stop the begining of the Renaissance (which denounces the laws as made by the Catholic Church), and these people assisted the Renaissance. Do you need to write an essay on it?