Why did they form the Council of Trent?

Answer 1

The Council of Trent was called by Pope Paul III to deal with Church discipline and the heresies of the protestants.

The nineteenth ecumenical council opened at Trent on 13 December, 1545, and closed there on 4 December, 1563. Its main object was the definitive determination of the doctrines of the Church in answer to the heresies of the Protestants; a further object was the execution of a thorough reform of the inner life of the Church by removing the numerous abuses that had developed in it. The Council of Trent was called by Paul III who was pope from 1534 to 1549 and it first sat in December 1545.

Answer 2

The Council of Trent was formed in response to the Protestant Reformation in order to address and reform issues within the Catholic Church, such as corruption and theological debates. It sought to reaffirm traditional Catholic teachings and practices while also clarifying points of contention with the Protestant movement.