Wikipedia
Byllis was an ancient city located in the region of Illyria. The remains of Byllis are situated north-east of Vlorë, 25 kilometers from the sea in Hekal, Fier County, Albania.
Stephanus of Byzantium mentions Byllis as a seaside city (erroneously) in Illyria and its foundation legend, according to which the city was built by Myrmidons under Neoptolemus, returning from the Trojan War, a tradition confirmed by numismatics.
The Bylliones are first attested in the mid-4th century BC, in the description of the geographer Pseudo-Scylax, and also asking the oracle of Dodona to which god they should sacrifice in order to ensure the safety of their possessions. The archaeological attestation of the city is possible as far back as the second half of the 4th century BC and was later conquered by Pyrrhus. According to another view, Byllis was found by king Pyrrhus of Epirus.
Byllis received sacred Greek envoys, known as theoroi during the early 2nd century BC, indicator of the city's Greek character.