Briseis is a character from ancient Greek literature, particularly known from Homer's epic poem, the Iliad. She is a captive woman, originally from Lyrnessus, who becomes the concubine of the Greek hero Achilles. Her story highlights themes of honor and the consequences of war. In the Iliad, Briseis is taken from Achilles by Agamemnon, the leader of the Greek forces, which leads to a significant conflict between the two men. Achilles' anger over the loss of Briseis is a central plot point, showcasing the personal struggles amid the larger backdrop of the Trojan War.