Titus Livius (Livy), The History of Rome, Book 35
Evan T. Sage, PhD professor of latin and head of the department of classics in the University of Pittsburgh, Ed.

47. When this answer had been conveyed to the king at the ships where he had stayed, for the present —for he had not come with such strength that he could undertake any forcible measures —it was decided to return to Demetrias. [2] There, since their first venture had proved fruitless, the king consulted with the Aetolians what should be done next. It was agreed to try the Boeotians, the Achaeans, and Amynander, king of the Athamanes. [3] They believed that the Boeotians had been unfriendly to the Romans ever since the death of Brachyllas and the events [4??] which followed¹ ; they thought that the Achaean magistrate Philopoemen, since he had become a rival in fame as a result of the war in Lacedaemon, was hostile to and hated by [p. 137]Quinctius.² [5] Amynander³ had as wife Apama,^{4 5} daughter of one Alexander of Megalopolis, who, boasting descent from Alexander the Great, had given to his two sons the names of Philip and Alexander and to his daughter that of [6] Apama; when she was joined in royal wedlock her elder brother Philip followed her to [7] Athamania. Since he happened to be vain in character, the Aetolians and Antiochus had induced him to hope for the throne of Macedonia, being, as they told him, truly of the stock of kings, if he allied Amynander and the Athamanes with [8] Antiochus. And this vain promise availed not only with Philip but also with Amynander.