From the wiks:
“The first disaster to give credibility to Savonarola’s apocalyptic message was the Medici family’s weakening grip on power owing to the French-Italian wars. The flowering of expensive Renaissance art and culture paid for by wealthy Italian families now seemed to mock the growing misery in Italy, creating a backlash of resentment among the people.”
This what happens when Jess has Wikipedia open as I play Assassin’s Creed II.