This article emphasizes the importance of an altar dedicated to Jupiter Sacrum find during the archaeological survey in the ancient city of Ulpiana in 2014. The epigraphy data stored on the altar clearly indicates the existence of the Fulgur cult in Ulpiana. Therefore, with this epithet, Jupiter it is proven for the first time in Ulpiana, but also in Kosovo. The discovery of the altar dedicated to Jupiter in Ulpiana only confirms the fact that Jupiter was worshiped and widely respected (...) among the inhabitants of the city, and his appearance with the epithet Fulguri completes the corpus of epithets, with which he was worshiped and honoured in the city of Ulpiana. (shrink)