At this time the Roman senate sent agents to Cumae to purchase grain in anticipation of a siege of Rome. Then in 505 BC Aristodemus led a Cumaean contingent to assist the Latin city of Aricia in defeating the Etruscan forces of Clusium (see also War between Clusium and Aricia) and having attained the people's favour he overthrew the aristocratic faction and became a tyrant himself. It was probably it this point that Cumae founded Neapolis in the late 6th century.