History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
but the commons, as soon as they had got arms, would no longer obey their commanders, but gathered in groups and ordered the aristocrats to bring out whatever food there was and distribute it to all; otherwise, they said, they would come to terms with the Athenians independently and deliver up the city.
Thereupon the men in authority, realizing that they could not prevent this and that they would be in peril if excluded from the capitulation, joined the commons in making an agreement with Paches and his army. The conditions were that the Athenian state should have the power to decide as they pleased about the fate of the Mytileneans and that the besieging army should be admitted into the city; but it was conceded that the Mytilenaeans might send an embassy to Athens to treat for terms, Paches, meanwhile, until the return of the embassy, agreeing not to imprison or enslave or put to death any Mytilenaean. Such was the agreement.
But those of the Mytilenaeans who had been most involved in the intrigue with the Lacedaemonians were in great terror when the army entered the town, and could not keep quiet, but notwithstanding the agreement took refuge at the altars. Paches, however, induced them to leave the altars, promising to do them no injury, and placed them for safe keeping in Tenedos until the Athenians should reach a decision.