The great Renaissance theologian, zealot, and political reformer, was tortured, hanged, and burned in the Piazza della Signoria in Florence in 1498. The spot where that happened is well-marked in the Piazza.
Botticelli was just one of his famous followers, and supposedly burned some of his own paintings in the Bonfires of the Vanities.
A new book, reviewed: Savonarola: The Rise and Fall of a Renaissance Prophet