The most important towns, besides Sparta and Gythium, were Bryseae, Amyclae and Pharis in the Eurotas plain, Pellana and Belbina on the upper Eurotas, Sellasia on the Oenus, Caryae on the Arcadian frontier, Prasiae, Zarax and Epidaurus Limera on the east coast, Geronthrae on the slopes of Parnon, Boeae, Asopus, Helos, Las and Teuthrone on the Laconian Gulf, and Hippola, Messa and Oetylus on the Messenian Gulf.
As plenipotentiary in 224 he called in Antigonus Doson of Macedonia, and helped to recover Corinth and Argos and to crush Cleomenes at Sellasia, but at the same time sacrificed the independence of the league.
In 233-2 Philopoemen skilfully evacuated Megalopolis before the attack of Cleomenes III., and distinguished himself at Sellasia (222).
Restored the royal power by murdering four of the ephors and abolishing the office, and though it was revived by Antigonus Doson after the battle of Sellasia, and existed at least down to Hadrian's reign (Sparta Museum Catalogue, Introd.
Subsequently it joined the Achaean League, and we find Messenian troops fighting along with the Achaeans and Antigonus Doson at Sellasia in 222 B.C. Philip V.
But Aratus, whose jealousy could not brook to see a Spartan at the head of the Achaean league called in Antigonus Doson of Macedonia, and Cleomenes, after conducting successful expeditions to Megalopolis and Argos, was finally defeated at Sellasia, to the north of Sparta, in 222 or 221 B.C. He took refuge at Alexandria with Ptolemy Euergetes, but was arrested by his successor, Ptolemy Philopator, on a charge of conspiracy.