History of the Peloponnesian War

The same summer, the Lacedaemonians made an expedition with all their forces, under the command of Pleistoanax, son of Pausanias, their king, into the country of the Parrhasians in Arcadia, who were subject to the Mantineans, and who had invited their interference in the spirit of faction: intending also, if they could, to demolish the stronghold at Cypsela, which, being situated in the Parrhasian territory, the Mantineans had fortified and garrisoned with their own troops, for the annoyance of the district of Sciritis in Laconia The Lacedaemonians therefore proceeded to ravage the land of the Parrhasians;

while the Mantineans, having committed their city to the custody of Argive troops, themselves kept guard over their confederates' country. Being unable, however, to save the fort at Cypsela, and the towns in Parrhasia, they retired.

The Lacedaemonians, after making the Parrhasians independent, and demolishing the fortress, returned home.