Escalations of Rome's war with the Aequi and Volsci led to the appointment of a dictator, Aulus Postumius Tubertus, who successfully defeated their combined forces at Mount Algidus.
Plutarch and Festus say that Cossus achieved these honors while he was consul, while most other ancient authors, such as Livy, place the event in 437 BC.
According to Livy, the chief political event of 428 BC was the appointment of a special commission to investigate the participation of Fidenae in the Veientane raids on Roman territory.
[3][7][8][9][10][11] Cossus and Quinctius were elected as consular tribunes in 426 BC, together with Gaius Furius Pacilus Fusus and Marcus Postumius Albinus Regillensis.
The college, including Quinctius, consisted of Lucius Furius Medullinus, Aulus Sempronius Atratinus and Marcus Manlius Vulso.