Final answer:
Clytemnestra killed Agamemnon for revenge for the sacrifice of their daughter Iphigenia, resentment over his infidelity, and her own ambition for power. These motives are central themes in Aeschylus's tragedy Agamemnon, part of the Oresteia trilogy.
Step-by-step explanation:
The question pertains to the reasons Clytemnestra had for killing Agamemnon, a story told in Greek mythology and dramatized in Aeschylus's ancient Greek tragedy, Agamemnon, which is the first play in his Oresteia trilogy. Clytemnestra had multiple motivations for committing this act:
- Revenge for Sacrifice of Iphigenia: Clytemnestra was aggrieved by Agamemnon's decision to sacrifice their daughter, Iphigenia, to appease the goddess Artemis for favorable winds to sail to Troy.
- Agamemnon's infidelity: Clytemnestra was angered by Agamemnon's unfaithfulness, particularly his taking of Cassandra, the Trojan princess, as a concubine.
- Power and Ambition: Clytemnestra also harbored a desire to rule Argos in her own right, and by eliminating Agamemnon, she could assert her power, alongside her lover Aegisthus.
These reasons combined to fuel Clytemnestra's deep resentment and culminated in the murder of Agamemnon.