In 1498, Dominican friar Girolamo Savonarola, the leader of a reform movement in Florence who claimed apocalyptic prophetic visions, attempted to prove the divine sanction of his mission by undergoing a trial by fire. The first of its kind for over 400 years, the trial was a fiasco for Savonarola, since a sudden rain doused the flames, canceling the event, and was taken by onlookers as a sign from God against him. The Holy Inquisition arrested him shortly thereafter, with Savonarola convicted of heresy and hanged at the Piazza della Signoria in Florence.