Question: When did Giuliano De' Medici's father die?
Sentence (from "Piero di Cosimo de' Medici"): Piero di Cosimo de' Medici (the Gouty), (Italian: "Piero "il Gottoso) (1416 – 2 December 1469) was the "de facto" ruler of Florence from 1464 to 1469, during the Italian Renaissance.
Relevant evidence: Yes