Xenophon Hellenica 5.2.25

[25]
  Then Phoebidas, after he had gathered together the remaining portion of Eudamidas’ troops, took them under his command and began his march. And ¹ when they arrived in the district of Thebes, they encamped outside the city, near the gymnasium. Now since the Thebans were divided by factions, it chanced that Ismenias and Leontiades, who were polemarchs ² , were at variance with one another, and both of them leaders of their respective political clubs. Hence Ismenias, on account of his hatred for the Lacedaemonians, did not even go near Phoebidas. Leontiades, however, not only paid court to him in various ways, but when he had become intimate with him, spoke to him as follows: