Vashti was removed after she refused the king’s command to come before him during the banquet (Esther 1:10–12). The king’s advisers urged a decree so her act would not be treated as a precedent, and the king accepted their counsel (Esther 1:16–20).
On the seventh day of the palace feast, the king—cheered by wine—orders seven trusted attendants to fetch Queen Vashti. He specifically wants her brought in wearing the royal crown so he can display her beauty to the gathered officials and peoples. Vashti refuses to come when summoned through these attendants. This moment comes at the climax of the opening feast scene in Esther 1, where the narrator has emphasized the empire’s scale, the court’s wealth, and the king’s desire to impress his leaders.
Esther 1:10–12 presents a royal command and a royal refusal in a highly public setting. The king, in a wine-loosened mood, sends seven close attendants to summon Queen Vashti.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Esther 1:10-12, then read the surrounding section so the answer stays connected to the passage's flow.
10On the seventh day, when the heart of the king was merry with wine, he commanded Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcass, the seven chamberlains who ministered in the presence of Ahasuerus the king,
11to bring Vashti the queen before the king with the crown royal, to show the peoples and the princes her beauty; for she was beautiful to look on.
12But the queen Vashti refused to come at the king`s commandment by the chamberlains: therefore was the king very angry, and his anger burned in him.