Jewess, originally named Hadassah, who lived in Persia; cousin of Mordecai (Est 2:7). Chosen queen of Xerxes (Est 2:8–18). Persuaded by Mordecai to foil Haman’s plan to exterminate the Jews (Est 3–4). Revealed Haman’s plans to Xerxes, resulting in Haman’s death (Est 7), the Jews’ preservation (Est 8–9), Mordecai’s exaltation (Est 8:15; 9:4; 10). Decreed celebration of Purim (Est 9:18–32). See also the Additions to Esther.