Clytemnestra Troy. The Trojan War lasted ten years. During this period of Agamemnon's long absence, Clytemnestra began a love affair with Aegisthus, her husband's cousin. Whether Clytemnestra was seduced into the affair or entered into it independently differs according to the respective author of the myth. Nevertheless, Clytemnestra and Aegisthus began plotting Agamemnon's demise. Clytemnestra was enraged by Iphigenia's murder (and presumably the earlier murder of her first husband by Agamemnon, and her subsequent rape and forced marriage). Aegisthus saw his father Thyestes betrayed by Agamemnon's father Atreus (Aegisthus was conceived specifically to take revenge on that branch of the family).
Greek mythology subterranean house of Hades and his predecessors, home of the dead. Influences from other cultures always afforded new themes. According to Classical-era mythology, after the overthrow of the Titans, the new pantheon of gods and goddesses was confirmed. Among the principal Greek gods were the Olympians, residing on Mount Olympus under the eye of Zeus. (The limitation of their number to twelve seems to have been a comparatively modern idea.) Besides the Olympians, the Greeks worshipped various gods of the countryside, the satyr-god Pan, Nymphs (spirits of rivers), Naiads (who dwelled in springs), Dryads (who were spirits of the trees),