Who was the good king of Judah who is known for his unwise alliances with Ahab and Ahabs sons?

The good king of Judah known for his unwise alliances with Ahab and his sons is Jehoshaphat. He ruled during a time of relative peace and prosperity and was noted for his religious reforms and efforts to strengthen the worship of Yahweh. However, his alliances with the northern kingdom's Ahab family, including military partnerships, are often criticized as politically imprudent and contrary to his faithfulness to God.