The wildest Medieval Europe

In the film I can see that christianity become the most important religion. The church was organise in a pyramidal system, the Pope was at the top, then were the bishops, priests and the acons, where at the bottom.
Also monks were part of the clergy.
Clergy was mainly divided into Secular and Regular. the members of secular were those that belonged to a religious order. The members of the secular were not bond to religious rule.
The monarchy and lords donate large estates because of support to secular authorities.