What was one reason the catholic church became less powerful in the 14th and 15th centuries?

During the 14th and 15th centuries, the Catholic Church weakened due to the rise of Protestantism. Many major European powers, such as England, converted to Protestantism, so the influence of the Vatican lessened.

One of the reasons the Catholic Church became less powerful in the 14th and 15th centuries was that a lot of people started to question the church's beliefs and they started criticizing it.

Do you mean israel ?