Troilo it will be remembered, was the lover of the Medicean Duchess of Bracciano.

After the discovery of their amours, and while the lady was being strangled by her husband, with the sanction of her brother Troilo escaped to France.
Ambrogio Tremazzi knowing that his murder would be acceptable to the Medici, undertook the adventure; moved, as he says, 'solely by the desire of bringing myself into favorable notice with the Grand Duke; for my mind revolted at the thought of money payments, and I had in view the acquisition of honor and praise rather, being willing to risk my life for the credit of my Prince, and not my life only, but also to incur deadly and perpetual feud with a powerful branch of the Orsini family.' On his return from France, having successfully accomplished the mission, Ambrogio Tremazzi found that the friends who had previously encouraged his hopes, especially the Count Ridolfo Isolami, wished to compromise his reward by the settlement of a pension on himself and his associate.
Whether he really aimed at a more honorable recognition of his services, or whether he sought to obtain better pecuniary terms, does not appear.
But he represents himself as gravely insulted; 'seeing that my tenor of life from boyhood upwards has been always honorable, and thus it ever shall be.' After this exordium in the form of a letter addressed to one Signor Antonio [Serguidi], he proceeds to render account of his proceedings.

It seems that Don Piero de'Medici gave him three hundred crowns for his traveling expenses; after which, leaving his son, a boy of twelve years, as hostage in the service of Piero, he set off and reached Paris on August 12, 1577.

There he took lodgings at the sign of the Red Horse, near the Cordeilliers, and began at once to make inquiries for Troilo.

He had brought with him from Italy a man called Hieronimo Savorano.