Which convention established a thorough reform of the Roman Catholic Church between 1545 and 1563?

The Council of Trent, held intermittently between 1545 and 1563, was crucial in addressing the challenges posed by the Protestant Reformation. It aimed to reform the Catholic Church from within and clarify various doctrines in response to Protestant criticisms. The council addressed issues such as the necessity of both faith and works for salvation, reaffirmed the authority of the Church and its traditions, and implemented reforms concerning clerical discipline, education, and the administration of sacraments. Its decrees played a significant role in revitalizing the Catholic Church and laid the groundwork for the Counter-Reformation, ensuring that it could better respond to its critics and strengthen its influence in the following centuries.