Mordecai, a Jew who belonged to the tribe of Benjamin, was taken into exile, along with King Jehoiachin of Judah, when King Nebuchadnezzar of Babylonia captured Jerusalem. Mordecai was the son of Jair, a descendant of Kish and Shimei. He now lived in the Persian city of Susa, where he was an important official in the royal court of Xerxes the great king. 1 During the second year of Xerxes' reign, on the first day of the month of Nisan, Mordecai had a dream.
References for Additions to Esther 1:1
A.1-3 2 K 24.10-16.