Final answer:
At the end of the 15th century, Savonarola led a religious crisis and advocated for the reform of the Church. He burned many famous pieces of art and was later sentenced to death. Botticelli, who initially agreed with Savonarola, shifted his focus to religious art after his death.
Step-by-step explanation:
At the end of the 15th century, a religious crisis occurred with the rise of Savonarola in Florence. Savonarola, wanting to reform the Church, preached against pagan art and gained a following. Many famous pieces of art were burned as a result. However, Savonarola was ultimately sentenced to death by the legal wing of the Church, and after his death, the artist Botticelli began painting more religiously.