'Conspirators' in the Bible

David was told, “Ahithophel [your counselor] is among the conspirators with Absalom.” David said, “O Lord, I pray You, turn Ahithophel’s counsel into foolishness.”

The conspirators against Joash were Zabad the son of Shimeath the Ammonitess, and Jehozabad the son of Shimrith the Moabitess.

and there will be no remnant [of the conspirators] left, for I will bring disaster and horror on the men of Anathoth in the year of their punishment.”