'Chamberlains' in the Bible

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

But the queen Vashti refused to come at the king's commandment by his chamberlains: therefore was the king very wroth, and his anger burned in him.

What shall we do unto the queen Vashti according to law, because she hath not performed the commandment 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 door, were wroth, and sought to lay hand on the king Ahasuerus.

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

Then called Esther for Hatach, one of the king's chamberlains, whom he had appointed to attend 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, the keepers of the door, who sought to lay hand on the king Ahasuerus.

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

And Harbonah, one of the chamberlains, said before the king, Behold also, the gallows fifty cubits high, which Haman had made for Mordecai, who had spoken good for the king, standeth in the house of Haman. Then the king said, Hang him thereon.