Quintus Sulpicius Longus came from the Roman patrician gens Sulpicii and served as one of six consular tribunes in 390 BC.
According to Roman tradition, Rome was conquered by the Gauls led by Brennus during his term.
[1] The full name of Quintus Sulpicius Longus is cited only in a single place in the work of Titus Livius.
Sulpicius is said to have performed a war sacrifice, noted by the annalists Gnaeus Gellius and Lucius Cassius Hemina, according to the priestly ways.
In Roman tradition, it is also stated that Sulpicius had been the commander of the fort during the Gallic siege[2] and had negotiated with Brennus on the price for the withdrawal of the Gauls.