2023年7月12日 · Thyestes thus became king of Mycenae, while Agamemnon and his brother Menelaus fled into exile. According to some traditions, Agamemnon and Menelaus were taken in by Tyndareus, the king of Sparta. Eventually, they were able to drive Thyestes out of Mycenae, and Agamemnon became king of the city that had once been his father’s.