[7][8][9][10][11] Lartius and Herminius appear again in the war with Clusium, commanding troops as part of a trap devised by the consul Publius Valerius Publicola to capture Etruscan raiding parties.

Many of the Latin towns had been allies of Rome during the final days of the Roman monarchy; some continued this alliance, while others sided with the Tarquins, who sought to regain the throne.

The Latin league was led by Octavius Mamilius, a prince of Tusculum, and the son-in-law of Lucius Tarquinius Superbus, the seventh and last King of Rome.

To meet the Latin army, the Romans appointed a dictator, Aulus Postumius Albus, and his magister equitum, Titus Aebutius Elva.

The Latin commander returned to the fray in order to save a company of Roman exiles, who were about to be cut off by Postumius, and in so doing he was recognized by Herminius.

In the ensuing charge, described by the historian Livy as occurring with even greater ferocity than the clash with Aebutius, Herminius killed the Latin dictator with a single thrust through the body.

[15] The stand of Herminius and his companions against Lars Porsena at the Sublician Bridge in 508 BC is celebrated in Macaulay's Lays of Ancient Rome, the most famous of which is Horatius.