What was one of the reasons for the rapid spread of the reformation in europe?

The Reformation had its origin in the criticisms and proposals with which various religious, thinkers and European politicians sought to cause a profound and widespread change in the customs and customs of the Catholic Church, in addition to denying the jurisdiction of the pope over all Christendom.

This movement expanded rapidly because it plunged its roots into elements of the medieval Catholic tradition, such as that of the Alumbrados and the reform of Cardinal Cisneros in Spain, and also the movement of modern Devotion in Germany and the Netherlands, which was a secular piety anti-ecclesiastical and centered on Christ. In addition, the second generation of humanism followed it to a large extent. It began with the preaching of the Augustinian priest Martin Luther, who revised the doctrine of the Catholic Church according to the criterion of its conformity to the Holy Scriptures. We must also bear in mind that the Catholic church lacked popularity due to the level of life that the popes had and the collection of services, such as forgiveness.

i don't know why don't you google it?