Briseis

In Greek mythology, Briseis was a Trojan maiden (from Lyrnessos) who was abducted during the Trojan War by Achilles. After an oracle forced Agamemnon to give up a woman he had captured, Chryseis, Agamemnon took Briseis to compensate himself. Achilles pouted and refused to fight, leading to many of the most important events of the Trojan War, including the death of Patroclus.