Linda Proud's A Tabernacle for the Sun (2005), the first volume of The Botticelli Trilogy, begins with the sack of Volterra in 1472.
Volterra is the site of Stendhal's famously disastrous encounter in 1819 with his beloved Countess Mathilde Dembowska: she recognised him there, despite his disguise of new clothes and green glasses, and was furious.