Girolamo Savonarola (1452–1498) was an Italian Dominican friar and preacher known for his zealous calls for religious reform and moral purification in Renaissance Florence. He rose to prominence in the late 15th century through fiery sermons condemning corruption within the Church and secular society, advocating for a return to Christian values. His strict policies and denunciations led to his excommunication and execution by burning in 1498.