Which hero was the leader of the Greek forces in the Trojan War?

Agamemnon was the hero who led the Greek forces in the Trojan War.

Agamemnon was king of Mycenae and commander-in-chief of the Achaean coalition that sailed against Troy. His authority came from his kingship, political power, and leadership of the largest Greek contingent. He was the elder brother of Menelaus, whose wife Helen’s departure with Paris helped trigger the war.

Before the fleet could sail, Agamemnon angered Artemis, and Greek tradition tells that he had to sacrifice his daughter Iphigenia—or, in some versions, attempt the sacrifice—to obtain favorable winds. At Troy, he was a powerful but difficult commander. His quarrel with Achilles over Briseis is a major turning point in the Iliad and helps explain the Greek army’s early setbacks.

Agamemnon should not be confused with Achilles, the Greeks’ greatest individual fighter, or Menelaus, the wronged husband at the center of the war’s cause. After Troy fell, Agamemnon returned home but was murdered by Clytemnestra and, in some versions, her lover Aegisthus.