Menelaus Tyndareus would support him in his courting of Tyndareus’s niece Penelope, the daughter of Icarius. Tyndareus readily agreed, and Odysseus proposed that, before the decision was made, all the suitors should swear a most solemn oath to defend the chosen husband in any quarrel. Then it was decreed that straws were to be drawn for Helen’s hand. The suitor who won was Menelaus (Tyndareus, not to displease the powerful Agamemnon offered him another of his daughters, Clytaemnestra). The rest of the suitors swore their oaths, and Helen and Menelaus were married, Menelaus becoming a ruler of Sparta with Helen after
History of Sparta backing of Egypt. However Aratus, the leader of the Achaean League, decided to ally with Achaea's enemy, Macedonia. With Egypt deciding to cut financial aid Cleomenes decided to risk all on one battle. In the resulting Battle of Sellasia in 222 BC, Cleomenes was defeated by the Achaeans and Macedonia. Antigonus III Doson, the king of Macedon ceremonially entered Sparta with his army, something Sparta had never endured before. The ephors were restored, whilst the kingship was suspended. At the beginning of the Social War in 220 BC, envoys from Achaea unsuccessfully attempted to persuade Sparta to take the field