This contribution is a reading of "Momus" by L.B. Alberti which highlights the “freedom” with which the main character, Momo, interacts with Jove and the ambiguous status of the “truth” of his words. After having shown briefly that Momo is described as a parrhesiasta on a number of occasions in some of Lucian of Samosata’s dialogues that may have been known to Alberti, we stop to consider this relationship, in many ways paradoxical, between prince and “counselor” in "Momus", trying to reveal all the historical ambiguity of the notion of parrhesia. The last section considers briefly Alberti's moral prose in light of this issue, in order to illustrate the moral conditions that, according to Alberti, are necessary to perform the office of political counsellor. We hope thus to offer some points for consideration in regard to the problem of political advising in the Renaissance and that of parrhesia as a form of political discourse around the government of the Prince.