His father, nicknamed the "Gouty," and his son, nicknamed the "Unfortunate," were both named (*) Piero.
This leader's forces sacked Volterra during a revolt over payment from their alum mine. He was saved from an assassination attempt by the writer Poliziano, after which he stayed with Ferdinand I of Naples. This leader invited a man who would be admired by the piagnoni [PEE-ah-NYO-nee] into his city and hanged Francesco Salviati for an attack implicitly endorsed by Pope Sixtus IV. His father, nicknamed the "Gouty," and his son, nicknamed the "Unfortunate," were both named (*) Piero. This patron of Pico della Mirandola had a brother named Giuliano who was killed in the Pazzi Conspiracy, in which he himself was wounded. He invited Savonarola to his city and was a patron of many artists, including Michelangelo. For 10 points, name this Florentine grandson of Cosimo de Medici.
This leader's forces sacked Volterra during a revolt over payment from their alum mine.
Lorenzo de' Medici [or Lorenzo the Magnificent; prompt on partial answers] 