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 in 413 was a material loss the Athenians could hardly bear, but the war continued for another ten years. Spartan shortcomings at sea were by this time manifest to them, especially under the tuteledge of Alcibiades. The lack of funds which could have proved fatal to Spartan naval warfare, was remedied by the intervention of Persia, which supplied large subsidies. In 412 the agents of Tissaphernes, the Great King's governor of such parts of the coast of Asia Minor as he could control, approached Sparta with a deal. The Great King would supply funds for the Spartan fleet if the