The Battle of Silva Arsia was a battle in 509 BC between the republican forces of ancient Rome and Etruscan forces of Tarquinii and Veii led by the deposed Roman king Lucius Tarquinius Superbus. The battle took place near the Silva Arsia (the Arsian forest) in Roman territory, and resulted in victory to Rome but the death of one of her consuls, Lucius Junius Brutus.