Why did Counter-Reformation policies affect freedom of thought and expression in 17th-century Italy?

In 17th-century Italy, Counter-Reformation policies significantly constrained freedom of thought and expression as the Roman Catholic Church sought to combat Protestantism and enforce doctrinal orthodoxy following the Council of Trent.21

The primary mechanisms for this control included:

• The Roman Inquisition: Established in 1542, this agency was empowered to supervise and discipline both clergy and laity, effectively suppressing ideas deemed heretical or threatening to the faith.23
• The Index Librorum Prohibitorum: This Index of Forbidden Books served as a powerful tool of censorship. It restricted a wide range of literature, including philosophical treatises and scientific works, limiting intellectual discourse to a narrowly controlled range of orthodox expression.41
• Direct Persecution: Intellectuals who challenged the prevailing religious or scientific dogma faced severe consequences. Notable examples include Giordano Bruno, who was executed as a heretic in 1600, Tommaso Campanella, who endured long-term imprisonment, and Galileo Galilei, who was forced to recant his Copernican beliefs and placed under house arrest.5

These policies created a climate where intellectual innovation was often stifled by the fear of ecclesiastical retribution, shaping the cultural landscape of the era.6