During the Second war with Rome, Macedonia around Stobi was often troubled by the incursion of Dardani. According to Livy (59 BC – 17 AD), Philip V in 183 BC decided to found a city in Deuriopus, near the Erigon River, not far from the ancient city of Stobi. He ordered the name of Perseida to be given to the new city, so as to show honor to his elder son. It is very likely that Bryanium as an already existing city of strategic importance was renamed to Perseida, since the city was in need to be rebuilt and better fortified. However, Perseida in short period of time was renamed to Deuriopus. http://www.macedonia.se/en/Load/62/perseida/