Justiniana Prima was a Byzantine city that existed from 535 to 615, and currently an archaeological site, known as or Caričin Grad (Serbian: Царичин Град), near modern Lebane in southern Serbia. The city was founded by Emperor Justinian I. It existed from the 530s to 615 and was designed as a splendid bishop's seat. The city was a completely new foundation in honour of the nearby village of Tauresium, the birthplace of Justinian. According to Procopius Bederiana, the birthplace of Justinian's uncle and mentor Justin I was nearby. There has been a long debate about the identification of these historical places. The huge correlation between the archaeological site and the description by Procopius as well as finds of seals of the bishop of Iustiniana Prima are strong arguments for an identification of Justiniana Prima with Caričin Grad. There have been archaeological excavations for nearly 100 years with the participation of French and more recently also German researchers. There is a permanent exhibition in the national museum in Leskovac. At the site itself monuments there are impressive remains of the fortification, the acropolis as well as of several churches and many other buildings.