What king called an assembly for Baal and then killed all of Baal's followers?

Jehu

And Jehu gathered all the people together, and said unto them, Ahab served Baal a little; but Jehu shall serve him much.

Now therefore call unto me all the prophets of Baal, all his servants, and all his priests; let none be wanting: I have a great sacrifice to do to Baal; whosoever shall be wanting, he shall not live. But Jehu did it in subtilty, to the intent that he might destroy the worshippers of Baal.

And Jehu said, Proclaim a solemn assembly for Baal. And they proclaimed it.

And Jehu sent through all Israel: and all the worshippers of Baal came, so that there was not a man left that came not. And they came into the house of Baal; and the house of Baal was full from one end to another. ...

Jehu said to the guard and to the captains, Go in, and slay them; let none come forth. And they smote them with the edge of the sword. 2 Kings 10:18-25