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.

The same summer the Lacedaemonians, under the command of Pleistoanax, son of Pausanias, king of the Lacedaemonians, made an expedition with all their forces into the territory of the Parrhasians of Arcadia, who were subjects of the Mantineans. They had been called in by the Parrhasians on account of a factional quarrel, and intended also to demolish, if possible, the fort at Cypsela, which, being situated in Parrhasian territory, the Mantineans had constructed and themselves garrisoned for the annoyance of the district Sciritis[*](The mountainous region between the upper Eurotas and the valley of the Oenus, one of the most important districts of the Perioeci.) in Laconia.

The Lacedaemonians proceeded to ravage the land of the Parrhasians, and the Mantineans, giving over the custody of their city to the Argives, tried themselves to guard the territory of their Parrhasian allies. Being unable, however, to save the fort at Cypsela and the towns in Parrhasia, they withdrew.

And the Lacedaemonians, after making the Parrhasians independent and pulling down the fort, then returned home.