In Etruscan mythology, Tyrrhenus (in Greek: Τυῤῥηνός) was one of the founders of the Etruscan League of twelve cities, along with his brother Tarchon. Herodotus^[1] describes him as the saviour of the Etruscans, because he led them from Lydia to Etruria; however this Lydian origin is to be debated as it contradicts cultural and linguistic evidence, as well as the view held by both the Etruscans themselves and by other Etrusco-Roman and Greek ancient sources.^[2][3][4] His name was given to the Etruscan people by the Greeks. The Romans extended this use to the sea west of Etruria: the Tyrrhenian Sea.