Thyestes killed Atreus. While Thyestes ruled Mycenae, the sons of Atreus, Agamemnon and Menelaus, were exiled to Sparta. There, King Tyndareus accepted them as the royalty that they were. Shortly after, he helped the brothers return to Mycenae to overthrow Thyestes, forcing him to live in Cytheria, where he died. As a token of good will and allegiance, King Tyndareus offered his daughters to Agamemnon and Menelaus as wives, Clytemnestra and Helen respectively. When Agamemnon left Mycenae for the Trojan War, Aegisthus seduced Agamemnon's wife, Clytemnestra, and the couple plotted to kill her husband upon his return. They succeeded, killing Agamemnon
History of Sparta The alarming decline of Spartan citizens was commented on by Aristotle. Sparta never fully recovered from the losses that the Spartans suffered at Leuctra in 371 BC and the subsequent helot revolts. Nonetheless, it was able to continue as a regional power for over two centuries. Neither Philip II nor his son Alexander the Great attempted to conquer Sparta itself. By the winter of late 370 BC, King Agesilaus took the field, not against Thebes, but in an attempt to preserve at least a toehold of influence for Sparta in Arkadia. This backfired when, in response, the Arkadians sent an