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Pope Paul III convened the Council of Trent in 1545.
The Council of Trent was convened by Pope Paul III on December 13, 1545, and concluded on December 4, 1563.
Pope Paul III called for the council.
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Francis James Paul has written: 'The doctrinal decrees of the Council of Trent'
Popes do not develop out of Councils, Pope call Ecumenical Counsels.
The major players at the Council of Trent were Pope Paul III, who called for the council, and key figures such as Cardinal Giovanni Morone and Cardinal Reginald Pole. The council was attended by bishops, theologians, and papal legates who played significant roles in shaping the decisions and reforms of the council.
I believe it was summoned by Pope Paul III because when he was elected Pope, he promised (to French Bishops in exchange for their vote?) to summon a council.
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.
The Council of Trent was set forth by the Catholic Church itself to address the challenges posed by the Protestant Reformation. The council outlined reforms in doctrine, discipline, and hierarchy to respond to the theological and institutional concerns raised by the Reformation.
The reigning pope, at the beginning of the Council, Pope Paul III, called and approved the Council. He and his successors oversaw the Council, primarily through their representatives, they did not personally attend the Council.
The bishops and cardinals in the Council of Trent.