"Lars Porsena (Etruscan: Pursenas; sometimes spelled Lars Porsenna) was an Etruscan king known for his war against the city of Rome. He ruled over the city of Clusium (Etruscan: Clevsin). There are no established dates for his rule, but Roman sources often place the war at around 508 BC." - (en.wikipedia.org 06.10.2020)
en