In 1626, the Neapolitan Ottavio Sammarco published the Discorso politico intorno la conseruatione della pace dell'Italia in which the author referred to the King of Spain as arbiter among the Italian princes and his ministers in Italy as efficient instruments to ensure the stability. This piece of political literature shows an explicit practical orientation, through which the author carries out a systematisation of the political means to achieve quietness in Italy. In articulating the praxis into formal language, Sammarco looks to (...) the past searching for the wisdom of History and uses Tacitus’ account to build a discourse around the tools and mechanisms for preserving stability and avoiding conflicts. The aim of this article, in the first instance, is to examine Sammarco's discursive programme and the purpose of his discourse; in the second place, how Tacitus serves the author's aim and how his account means a fundamental anchor. Furthermore, it will be useful to trace how the political language that transforms the continuous threat of war into politics is modelled by 1626 in Italy and how Sammarco contextualizes his political vocabulary within the Spanish Monarchy political dialectic at the beginning of XVII century. (shrink)