Mordecai in Wikipedia

Mordecai or Mordechai (Hebrew: מָרְדֳּכַי, Modern Mordekhay Tiberian Mordŏḵáy) - the son of Jair, of the tribe of Benjamin, is one of the main personalities in the Book of Esther in the Hebrew Bible. Mordecai resided in Susa (a.k.a. Shushan), the metropolis of Persia. He adopted his cousin Hadassah (Esther), an orphan child, whom he tenderly brought up as his own daughter. When "young virgins" were sought, she was brought into the presence of king Ahasuerus and was made queen in the place of the exiled queen Vashti. Mordecai was then promoted to a position of royal court advisor as a result of ingratiating himself to Ahasuerus and was therefore referred to subsequently as one of those who "sat in the king's gate" to indicate his position of closeness to the King. While holding this office, he discovered a plot of Bigthan and Teresh, the King's Chamberlains eunuchs to put the king to death, which, by his vigilance, was defeated. His services to the king in this matter were duly recorded in the royal chronicles...