Cynuria

[7] But the great victory of Cleomenes over the Argives near Tiryns, shortly before the Persian wars, was the event which secured to the Spartans undisputed possession of Cynuria for a long time.

When the Aeginetans were expelled from their own island by the Athenians, at the commencement of the Peloponnesian War (431 BCE), the Spartans allowed them to settle in the Thyreatis, which at that time contained two towns, Thyrea and Anthene or Athene, both of which were made over to the fugitives.

[8] Here they maintained themselves till the 8th year of the Peloponnesian war, when the Athenians made a descent upon the coast of the Thyreatis, where they found the Aeginetans engaged in building a fortress upon the sea.

This was forthwith abandoned by the latter, who took refuge in the upper city (ἡ ἄνω πόλις) at the distance of 10 stadia from the sea; but the Athenians followed them, took Thyrea, which they destroyed, and dragged away the inhabitants into slavery.

[9] Philip, the father of Alexander the Great, gave back the Thyreatis to the Argives, and extended their territory along the coast as far as Glympeis and Zarax.