I have consulted this series of manuscripts (APUG, mss. 976-985) at the Archive of the Pontifical Gregorian University with the aim of retrieving first hand information about politics and society in Rome on the verge of the Eighteenth century. These chronicles closely resemble the model of gazette or journal then available across Europe. Despite this analogy though, these manuscripts appear to be the work of a well trained chancellery, either pertaining to powerful players at the Roman Court (cardinals, aristocrats) or to the embassies of foreign countries based in Rome; in fact, a substantial part of the Diari focuses on Rome alone and the facts detailed are not always designed to reach the eye of the general public. However, some of the news covered thereby may well be regarded as a primary source for the journals of the time, possibly through diplomatic networks. A fascinating and inspiring reading of which I am deeply indebted to Father Martín María Morales, Dr. Irene Pedretti and Dr. Cristina Berna who have made it possible for me to access and consult such a conspicuous and ponderous documentation in a relatively brief span of time.