摘要:The medieval feudal fort of Possert (Shabez), which is located in the Municipality of Cerovlje, in the vicinity of Belaj, was a site where the Division for Archaeological Heritage of the Croatian Conservation Institute performed archaeological explorations and conservation-restoration interventions in the course of the last six years. The archaeological excavations performed during this period resulted in the discovery of many hitherto unknown architectural details that explain the way in which the fort functioned, and of a significant amount of movable archaeological finds, enabling us to date the period when the fort was in service (15th and 16th century), and at the same time giving us an insight into everyday life in it. Due to the extremely poor condition of the preserved architectural elements that make up the fort, we also had to carry out extensive conservation-restoration works in this period of time, in order to improve the state of its most endangered parts and to save it from further deterioration. This paper brings an analysis of known historical data, an analysis of fort architecture, and a description of the works that were performed to date. In addition, it also offers an overview and an analysis of the collected movable archaeological finds, on the basis of which we attempted to position Possert in the historical and social context of the period in which the fort functioned.