Text #9233"Roman-Latin Wars", in .
According Livy the immediate cause for this war came in 361 when the Tiburtes closed their gates against a Roman army returning from a campaign against the Hernici. There had been numerous complaints on both sides and the Romans decided that they would declare war against the Tiburtes if the Fetials failed to get redress. This year also saw an invasion of Roman territory by an army of marauding Gauls. After being defeated by the Romans, these Gauls moved into the neighborhood of Tibur where the Gauls and the Tiburtes formed an alliance. After being resupplied by the Tiburtes the Gauls moved into Campania.
Next year, 360, consul Gaius Poetilius (with the cognomen “Balbus” according to Livy, but “Libo Visolus” according to other sources) led an army against Tibur. However the Gauls reappeared from Campania and under Tiburtine leadership the territories of Labici, Tusculum and Alba were raided. In response the Romans nominated Q. Servilius Ahala as dictator. The dictator defeated the Gauls in a battle near the Colline Gate. The Gauls fled towards Tibur, but were intercepted by the consul. The Tiburtes sallied in a failed attempt to assist their allies, both Tiburtes and Gauls were driven within the gates. The dictator praised the consuls and laid down his office. Poetilius celebrated a double triumph over the Gauls and the Tiburtes, but the Tiburtes belittled the achievements of the Romans.The Fasti Triumphales records that C. Poetelius Libo Visolus, consul, celebrated a triumph over the Gauls and Tiburtes on 29 July. According to Livy in 359 the Tiburtes marched at night against the City of Rome. The Romans were first alarmed, but when daylight revealed a comparatively small force, the consuls attacked from two separate gates and the Tiburtines were routed.
There are some inconsistencies in what caused the war between Rome and Tibur, and much of details for these years are likely invented. The historicity of this Gallic war is itself somewhat dubious, this and the fact that both Livy and F.T. assigns the triumph to the consul, has led to doubts about the historicity of Servilius’ dictatorship as well.