Supposedly the original Romans were the descendants of the refugees from the Trojan War.
They must have been.
Why would they pick the losers side?...................
The Aeneid was a piece of supporting myth commissioned from the poet Virgil by Augustus.
The Etruscans had come from the Aegean, and were not Greek. Rome was founded by Etruscans and ruled by various Etruscan dynasties for hundreds of years. Etruscan civil engineering formed the foundation of Roman civil engineering, and even the Roman games grew out of Etruscan funerary practices.