The main purpose of this paper is to outline how the city of Udine, subordinated to an ecclesiastical power, administered its justice during the last decades of the Patriarchate of Aquileia. I chose to focus on criminal justice, in particular on banishment (bannum) and other milder exclusion measures, such as relegation (confinacio). In order to better understand these practices, I studied and compared city laws, city council deliberations and criminal records. I highlighted that since the 1380s the city started emancipating from patriarchs’ authority, exceeding the juridical boundaries that characterized the traditional structure of the prince-bishopric.
