After the death of Tyndareus, Meneleaus became king of Sparta. He used the Spartan army to drive out Aegisthus and Thyestes from Mycenae and place Agamemnon on the throne. Agamemnon extended his dominion by conquest and became the most powerful ruler in Greece.
After Tyndareus' death, Menelaus became king of Sparta. He used the Spartan army to expel Aegisthus and Thyestes from Mycenae and place Agamemnon on the throne. Agamemnon then extended his power through conquest and became the most powerful ruler in Greece.