Dall'Aglio's book draws its inspiration from the notes jotted down by the Camaldolese monk Paolo Giustiniani (al secolo, Tommaso, 1476-1528) in preparation for the planned reexamination of Savonarola during the meetings of the Florentine Synod of 1516-17, called for by Pope Leo X de' Medici and convened by his cousin, Cardinal Giulio de' Medici, Archbishop of Florence (and future Pope Clement VII).
15) The amusing subject would have much appealed to Giulio de' Medici, who had, himself, recently placed artists in competition, notably when he pitted Raphael against Sebastiano del Piombo in a commission of altarpieces for the cathedral of Narbonne.
European, North American, and Australian scholars describe the pontificate of Cardinal Giulio de' Medici, elevated as Pope in November 1523, and on watch during the spread of the Lutheran heresy, the sack of Rome, and the loss of Britain to the church.
Price Zimmermann discusses Clement's character, as portrayed from a historian's perspective by Francesco Guicciardini and a biographer's perspective by Paolo Giovio, while accounts of the conspiracy against the then Cardinal Giulio de' Medici in Florence in 1522 are set against Machiavelli's comments on conspiracies in the Discorsi, by Patricia J.
Not a single letter of the artist survives from November 1515 until September 1516, and it is this gap in the correspondence that explains much of the mystery that surrounds not only Michelangelo's intentions but also those of his patrons, Pope Leo X and Cardinal Giulio de' Medici.
Macey mentions the importance of Lyons, where there was a colony of Florentine expatriates, but he might have made more of the fact that several members of the Rucellai group, including della Palla, escaped to Lyons after the discovery of the plot against Cardinal Giulio de' Medici in 1522.