Input (grade 13): He vehemently preached against the moral corruption of much of the clergy at the time, and his main opponent was Rodrigo Borgia, who was Pope Alexander VI from 1492, through to Savonarola's death, in 1498.
Output (grade 5): Savonarola was a priest but he preached against the moral corruption of the clergy and the Church of Rome. His main enemy was Pope Alexander VI.