Gergovia

The deaths may have occurred during battles with the Romans, particularly since the site of Gergovia, where Julius Caesar suffered a temporary setback at the hands of Gallic chief Vercingetorix in 52 B.C., is nearby.

Gaulish Discovery 2002

Gergovia (p.  372) the inhabitants plundered his camp and massacred the soldiers.

The South of France—East Half C. B. Black

Amidst such a series of successes, he experienced thrice only any signal disaster; once in Britain, when his fleet was nearly wrecked in a storm; in Gaul, at Gergovia, where one of his legions was put to the rout; and in the territory of the Germans, his lieutenants Titurius and Aurunculeius were cut off by an ambuscade.

The Lives of the Twelve Caesars, Volume 01: Julius Caesar Gaius Suetonius Tranquillus

Gergovia, carrying there all their most valued possessions, and Caesar had a great deal of toil to no purpose in besieging them.

Dio's Rome, Volume 2 An Historical Narrative Originally Composed in Greek During the Reigns of Septimius Severus, Geta and Caracalla, Macrinus, Elagabalus and Alexander Severus; and Now Presented in English Form. Second Volume Extant Books 36-44 (B.C. 69-44). Cassius Dio

Amidst such a series of successes, he experienced thrice only any signal disaster; once in Britain, when his fleet was nearly wrecked in a storm; in Gaul, at Gergovia, where one of his legions was put to the rout; and in the territory of the Germans, his lieutenants Titurius and Aurunculeius were cut off by an ambuscade.

De vita Caesarum Gaius Suetonius Tranquillus

[- 38 -] The Romans were later, by reason of Caesar's absence, defeated close to Gergovia and then entirely withdrew from that country; wherefore those who had caused the uprising and were always desirous of a change in politics feared that if they delayed the Romans might exact vengeance [64] from them, and consequently rebelled entirely.

Dio's Rome, Volume 2 An Historical Narrative Originally Composed in Greek During the Reigns of Septimius Severus, Geta and Caracalla, Macrinus, Elagabalus and Alexander Severus; and Now Presented in English Form. Second Volume Extant Books 36-44 (B.C. 69-44). Cassius Dio

It was, like Gergovia, situated on a hill and considered impregnable.

Ancient Rome : from the earliest times down to 476 A. D. Robert Franklin Pennell

Caesar first besieged and took Avaricum, whose occupants were massacred, and then invested Gergovia (near the Puy-de-Dôme), the capital of the Arverni, but suffered a severe repulse and was forced to raise the siege.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various

He then marched against Gergovia, the capital of the Averni.

Ancient Rome : from the earliest times down to 476 A. D. Robert Franklin Pennell

I saw all this from the height at which I was, as we see the lunar landscapes through the telescope, or as we see the earth from a balloon; but I could recognize Gaul, l'Amerque, Gergovia, the Puy de Dôme, extinct volcanoes, and my mind easily reconstructed the Gallic scene of which this reduced image was presented to my gaze.

Part I, Chapter V of "Uranie" 1890