[3][1] Consul in 431 BC with Titus Quinctius Pennus Cincinnatus, Mento quickly found himself in constant disagreement with his colleague.
During their year of office, the Aequi and the Volsci fortified a position on Mount Algidus, with some chroniclers reporting that the consuls attempted to dislodge them, but were defeated.
[6][2][1] After raising his army, Postumius, together with Cincinnatus, marched towards the Aequi and Volsci leaving the two Julii behind in charge of Rome's defences.
The fighting at Mount Algidus was fierce; the dictator was wounded in the shoulder, and the consul Cincinnatus lost an arm; but the Romans won a decisive victory.
Ordinarily, the two consuls would have drawn lots for the honour of dedicating the temple, but in the absence of Cincinnatus, the duty fell to Mento.