Plutarch, Pelopidas
Bernadotte Perrin, Ed.

27. After this, when the Thessalians again brought complaint against Alexander of Pherae as a disturber of their cities, Pelopidas was sent thither on an embassy with Ismenias;¹ and since he brought no force from home with him, and did not expect war, he was compelled to employ the Thessalians themselves for the emergency. [2] At this time, too, Macedonian affairs were in confusion again, for Ptolemy had killed the king and now held the reins of government, and the friends of the dead king were calling upon Pelopidas. Wishing, therefore, to appear upon the scene, but having no soldiers of his own, he enlisted some mercenaries on the spot, and with these marched at once against Ptolemy. [3] When, however, they were near each other, Ptolemy corrupted the mercenaries and bribed them to come over to his side; but since he feared the very name and reputation of Pelopidas, he met him as his superior, and after welcoming him and supplicating his favour, agreed to be regent for the brothers of the dead king, and to make an alliance with the Thebans; moreover, to confirm this, he gave him his son Philoxenus and fifty of his companions as hostages. [4] These, then, Pelopidas sent off to Thebes; but he himself, being indignant at the treachery of his mercenaries, and learning that most of their goods, together with their wives and children, had been placed for safety at Pharsalus, so that by getting these into his power he would sufficiently punish them for their affront to him, he got together some of the Thessalians and came to Pharsalus. [5] But just as he got there, Alexander the tyrant appeared before the city with his forces. Then Pelopidas and Ismenias, thinking that he was come to excuse himself for his conduct, went of their own accord to him, knowing, indeed, that he was an abandoned and blood-stained wretch, but expecting that because of Thebes and their own dignity and reputation they would suffer no harm. [6] But the tyrant, when he saw them coming up unarmed and unattended, straightway seized them and took possession of Pharsalus. By this step he awoke in all his subjects a shuddering fear; they thought that after an act of such boldness and iniquity he would spare nobody, and in all his dealings with men and affairs would act as one who now utterly despaired of his own life.