'Chamberlains' in the Bible

On the seventh day, when the king's heart was merry with wine, he commanded Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven chamberlains that served in the presence of king Ahasuerus,

But the queen Vashti refused to come at the word of the king which was sent by the chamberlains; and the king was very wroth, and his fury burned in him.

What shall be done to the queen Vashti according to law, because she has not performed the word of the king Ahasuerus by the chamberlains?

In those days, while Mordecai sat in the king's gate, two of the king's chamberlains, Bigthan and Teresh, of those which kept the threshold, were wroth, and sought to lay hand on the king Ahasuerus.

And Esther's maids and her chamberlains came and told it her; and the queen was exceedingly grieved: and she sent raiment to clothe Mordecai, and to take away his sackcloth from him; but he received it not.

Then Esther called for Hatach, one of the king's chamberlains, whom he had appointed to wait upon her, and gave him a commandment to Mordecai, to know what it was, and why it was.

And it was found written, that Mordecai had told of Bigthana and Teresh, two of the king's chamberlains, keepers of the threshold, who had sought to lay hand on king Ahasuerus.

While they were yet talking with him, the king's chamberlains came, and hasted to bring Haman to the banquet that Esther had prepared.

And Harbonah, one of the chamberlains, said before the king, Behold, also, the gallows fifty cubits high, that Haman made for Mordecai, who spoke good for the king, stands in the house of Haman. And the king said, Hang him on it!