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.
Esther 2:21
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 hands on the king Ahasuerus.