2 Chronicles 23:12-15

12When Athaliah heard the shouting of the people running and praising the king, she came to the people to the House of Adonai.

13She looked, and behold, the king was standing by his pillar at the entrance and the officers and the trumpeters were beside the king. All the people of the land were rejoicing and blowing the trumpets, and the singers with their musical instruments were leading the praise. So Athaliah tore her clothes and said, “Treason, treason!”

14Jehoiada the kohen brought out the officers of hundreds who were set over the army, and said to them, “Bring her out from between the ranks and put to the sword anyone who follows her.” For the kohanim said, “Do not put her to death in the House of Adonai.”

15So they seized her as she arrived at the entrance of the Horse Gate of the royal palace and killed her there.