Divico was a Celtic king and the leader of the Helvetian tribe of the Tigurini. During the Cimbrian War, in which the Cimbri and Teutons invaded the Roman Republic, he led the Tigurini across the Rhine to invade Gaul in 109 BC. He defeated a Roman army near present-day Agen on the Garonne river and killed its leaders Lucius Cassius Longinus (consul 107 BC) and Lucius Calpurnius Piso Caesoninus during the Battle of Burdigala in 107 BC. Eventually he led his people back to the tribes of the Helvetii, near present-day Switzerland where they settled in the Jura Mountains near Lac Leman. 49 years later, before the Battle of Bibracte, he led a delegation back to Gaul to negotiate for a safe passage for his tribe through the Roman region of Provence. The request was denied by Caesar who wanted revenge for a relative who had been killed in the battle near Agen in 107 BC.