'Chamberlain' in the Bible

And he got rid of the horses that the kings of Judah had given [in worship] to the sun at the entrance of the house of the Lord, by the chamber of Nathan-melech the official, which was in the annex; and he burned the chariots of the sun.

The message which Jeremiah the prophet commanded Seraiah the son of Neriah, the grandson of Mahseiah, when he went with Zedekiah the king of Judah to Babylon in the fourth year of his reign. Now this Seraiah was chief chamberlain or quartermaster [and brother of Baruch].

Now Herod [Agrippa I] was extremely angry with the people of Tyre and Sidon; and their delegates came to him in a united group, and after persuading Blastus, the king’s chamberlain [to support their cause], they asked for peace, because their country was fed by [imports of grain and other goods from] the king’s country.