Bigthan in Easton's Bible Dictionary
one of the eunuchs who "kept the door" in the court of
Ahasuerus. With Teresh he conspired against the king's
life.
Mordecai detected the conspiracy, and the culprits
were hanged
(Esther 2:21-23; 6:1-3).
Read More about Bigthan in Easton's Bible Dictionary