 Esther is described in the Book of Esther as a Jewish queen of the Persian king Ahasuerus.In the narrative, Ahasuerus seeks a new wife after his queen, Vashti, refuses to obey him, and Esther is chosen for her beauty.The king's chief advisor, Haman, is offended by Esther's cousin and guardian, Mordecai, and gets permission from the king to have all the Jews in the kingdom killed.