[3] Tauresium is located in Zelenikovo Municipality, near the village Taor, some 20 kilometres (12 mi) southeast of Skopje.

According to Justinian's biographer Procopius, the Emperor was born in Tauresium in 482, more precisely in the castle of Bederiana, which is near the modern city of Niš, Serbia.

[3] In the book De aedificiis, Procopius states: "...Among the Dardanians of Europe who live beyond the boundaries of the Epidamnians, close to the fortress which is called Bederiana, there was a hamlet named Taurisium, whence sprang the Emperor Justinian, the founder of the civilised world.

And close by this place he built a very notable city which he named Justiniana Prima (this means "first" in the Latin tongue), thus paying a debt of gratitude to the home that fostered him..."[4]The similarity in the names of Tauresium and Barderia as Taor (Таор) and Bader (Бадер) was brought to attention by Antun Mihanović, the First Austrian Konzul 1836–1858 and proposed to the writer Hun, who stopped on his journey to investigate the location, which is noted in the book Stara Srbija i Makedonija – Spiridion Gopčević.

The stories from the local peasants and badly damaged Cyrillic script were not sufficient to prove the theory initially, but later in the Monastery of St. John in Veles, Cyrillic writings were presented to him after which he concluded that this was the same Byzantine City of Tauresium, birthplace of Justinian I, who laid the foundation for The First Golden Age of The Byzantine Empire.