The Aedui were a Gallic tribe dwelling in what is now the region of Burgundy during the Iron Age and the Roman period.  The quinarius is a silver coin valued at half a Roman denarius.  These were minted by the Celts in Gaul to facilitate trade and commerce with Rome.

Before Caesar's time, the Aedui had a positive relationship with Rome.  When the Sequani, their traditional rivals, defeated and massacred the Aedui at the Battle of Magetobriga in 63 BC, with the assistance of the Germanic chieftain Ariovistus, the Aedui sent the druid Diviciacus to Rome with an appeal to the senate for help; but his mission was unsuccessful.

After his arrival in Gaul in 58 BC, Caesar restored the independence of the Aedui. In spite of this, they subsequently joined the Gallic coalition against Caesar, but after the surrender of Vercingetorix at the Battle of Alesia, the Aedui gladly returned to their allegiance. Augustus dismantled their capital, Bibracte, on Mont Beuvray, and constructed a new town with a half-Roman, half-Gaulish name, Augustodunum (modern Autun)

In AD 21, during the reign of Tiberius, the Aedui revolted under Julius Sacrovir, and seized Augustodunum, but they were soon put down by Gaius Silius. The Aedui were the first of the Gauls to receive from the emperor Claudius the distinction of jus honorum, thus being the first Gauls permitted to become senators.