Appian of Alexandria Civil Wars 5.9.78

[78] Those of the nobility who were still with Pompeius, seeing him always under the influence of his freedmen, bribed some of them, either for their own purposes or to gratify Octavius, to incite their master against Menodorus, who was still governing Corsica and Sardinia. ¹ The freedmen did this gladly, because they were envious of the power of Menodorus. In this way Pompeius was brought to an estrangement with Menodorus. About the same time Philadelphus, a freedman of Octavius, made a voyage to Menodorus to procure corn, and Micylio, the closest friend of Menodorus, visited Octavius to arrange for the desertion of Menodorus. The latter promised to hand over to him Sardinia, Corsica, three legions of soldiers, and a large number of light-armed troops. Whether this was the work of Philadelphus, or was a consequence of the calumnies against Menodorus, which Pompeius had listened to, Octavius accepted the offer, not immediately, but soon, since he considered the peace broken in fact. He invited Antony to come from Athens and meet him at Brundusium on an appointed day, in order to take counsel with him about the war. At the same time he brought war-ships from Ravenna and an army from Gaul, and the remainder of his apparatus, rapidly to Brundusium and Puteoli, intending to sail from both sides of Italy to Sicily if Antony should agree in opinion with him.