Battle of Fidenae (437 BC)
The Senate appointed Tullus Cloelius, Gaius Fulcinius, Spurius Antius, and Lucius Roscius to enquire into the motives behind the revolt.The historian Livy doubts the legitimacy of this story, suggesting that Tolumnius, whose interests were not served by the reunion of Rome and Fidenae, deliberately inflamed the conflict between the two cities.He met the combined forces of Fidenae and Veii on the southern shores of the Anio River and fought a bloody and indecisive battle, where the eventual Roman victory was overshadowed by the great loss of life required to obtain it.[2] Dissatisfied with the outcome of the first battle, the Romans appointed Mamercus Aemilius Mamercinus to conduct the war as dictator.News of Mamercinus' appointment caused the enemy to return to the northern shore of the Anio and take up a defensive position in the hills between Fidenae and the river.