'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 ministered in the presence of Ahasuerus the king,

But the queen Vashti refused to come at the king's commandment by the 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 done the bidding of the king Ahasuerus by the chamberlains?

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

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

Then called Esther for Hathach, one of the king's chamberlains, whom he had appointed to attend upon her, and charged him to go to Mordecai, to know what this was, and why it was.

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

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

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