2 Chronicles 23:14-15

14Jehoiada the priest sent a message to the army officers who had authority over groups of 100 soldiers. He told them, ‘Bring her out of the temple to the line of guards outside. Use your swords to kill anyone who follows her.’ That was because Jehoiada had said, ‘You must not kill her inside the Lord's temple.’

15So they took hold of Athaliah. They took her through the gate for the king's horses into the yard of the palace. They killed her there.