Complex sentence: It was named after the mythical Thracian king Eumolpos, son of Poseidon or Jupiter, who may have founded the city around 1200 BCE or 1350 BC, or after the Vestal Virgins in the temples-evmolpeya.
Split into simpler sentences: It was named after the mythical Thracian king Eumolpos, son of Poseidon or Jupiter, who may have founded the city around 1200 BCE or 1350 BCE,. It is also possible that is was named after the Vestal Virgins in the temples-evmolpeya.