Esther 2:4-8

Then let the young woman who pleases the king be queen in place of Vashti.” And the suggestion pleased the king, and he did accordingly.

There was a Jew at the citadel in Susa whose name was Mordecai, the son of Jair, the son of Shimei, the son of Kish, a Benjaminite,

who had been taken from Jerusalem with the exiles who had been deported with Jeconiah king of Judah, whom Nebuchadnezzar the king of Babylon had deported.

He was the guardian to Hadassah, that is Esther, his uncle’s daughter, for she had no father or mother. Now the young woman was beautiful of form and face, and when her father and her mother died, Mordecai took her as his own daughter. Esther Finds Favor

So it came about, when the command and decree of the king were heard and many young ladies were gathered to the citadel of Susa into the custody of Hegai, that Esther was taken to the king’s palace into the custody of Hegai, who was in charge of the women.