In 508 BC, Lars Porsena king of Clusium (at that time reputed to be one of the most powerful cities of Etruria) departed Rome after ending his war against Rome by peace treaty.
Na njenem ozemlju, ki mu je bilo priključeno jezero Nemi, je bil sedež svetišča "Diane Aricine" (ali "Diana Nemorensis"), ki je skupna za države Latinskih mest in je kralj "Rex Nemorensis" zaslovel v Frazerjevi knjigi "Golden Bough".