This reform was due to the Protestants demanding for reform of the Catholic Church. The educated Catholics, the Council of Trent, wanted to reform the Catholic Church because the Church was being criticized for selling tickets of forgiveness from sins for money and other reasons. The educated Catholics were called the Council of Trent because they met at Trent in S. Tryol from 1545-1563. The council worked so hard to reform the church that they reaffirmed Catholic beliefs and fixed their image, which I think was one of the most important factors of the reformation. Another important factor was how the whole reform started.