Strabo 14.1.38.

After Smyrna one comes to Leucae, a small town, which after the death of Attalus Philometor was caused to revolt by Aristonicus, who was reputed to belong to the royal family and intended to usurp the kingdom. Now he was banished from Smyrna, after being defeated in a naval battle near the Cymaean territory by the Ephesians, but he went up into the interior and quickly assembled a large number of resourceless people, and also of slaves, invited with a promise of freedom, whom he called Heliopolitae. Now he first fell upon Thyateira unexpectedly, and then got possession of Apollonis, and then set his efforts against other fortresses. But he did not last long; the cities immediately sent a large number of troops against him, and they were assisted by Nicomedes the Bithynian and by the kings of the Cappadocians. Then came five Roman ambassadors, and after that an army under Publius Crassus the consul, and after that Marcus Perpernas, who brought the war to an end, having captured Aristonicus alive and sent him to Rome. Now Aristonicus ended his life in prison; Perpernas died of disease; and Crassus, attacked by certain people in the neighborhood of Leucae, fell in battle. And Manius Aquillius came over as consul with ten lieutenants and organized the province into the form of government that still now endures.