History of the Peloponnesian War
Thucydides
Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.
The same winter the Olynthians took Mecyberne, held with a garrison of the Athenians, by assault.
After this the Lacedaemonians (for the conferences between the Athenians and Lacedaemonians about reciprocal restitution continued still), hoping that if the Athenians should obtain from the Boeotians Panactum, that then they also should recover Pylus, sent ambassadors to the Boeotians with request that Panactum and the Athenian prisoners might be put into the hands of the Lacedaemonians, that they might get Pylus restored in exchange.
But the Boeotians answered that unless the Lacedaemonians would make a particular league with them as they had done with the Athenians, they would not do it. The Lacedaemonians, though they knew they should therein wrong the Athenians, for that it was said in the articles that neither party should make either league or war without the other's consent, yet such was their desire to get Panactum to exchange it for Pylus, and withal they that longed to break the peace with Athens were so eager in it, that at last they concluded a league with the Boeotians, winter then ending and the spring approaching; and Panactum was presently pulled down to the ground. So ended the eleventh year of this war.