וַיִּשְׂמַ֥ח כָּל־עַם־הָאָ֖רֶץ וְהָעִ֣יר שָׁקָ֑טָה וְאֶת־עֲתַלְיָ֛הוּ הֵמִ֥יתוּ בַחֶ֖רֶב בֵּ֥ית מלך [הַמֶּֽלֶךְ׃] (ס)
So all the people of the land rejoiced, and the city was quiet; and they slew Athaliah with the sword at the king’s house.
Read kabbalistic (mystical) interpretation of II Kings 11:20: and classical mystical sources.