There are two kings named Jehoahaz in the Bible and both of their profiles are included below:
Jehoahaz, fourth son and successor of Josiah (609-608 BC). His mother's name was Hamutal. He became King at age 23, and only reigned three months.
Pharoah Neco removed Jehoahaz from the throne and sent him to Egypt, where he later died. The Pharoah demanded an annual tribute from Judah, and appointed Eliakim as the new King of Judah. Eliakim's name was changed to Jehoiakim. The story of Jehoahaz is found in 2 Kings 23:31-34, and 2 Chronicles 36:1-4.
The name Jehoahaz means "God has held firmly."
Jehoahaz was the eleventh King of the northern kingdom of Israel. He was the son of King Jehu. He reigned for 17 years (814-798 BC) in Samaria, and followed the same path as Jeroboam, leading the people of Israel to sin.
The Syrian army under King Hazael and his son Ben-Hadad invaded Israel, but Jehoahaz prayed for the Lord's help, and the Lord raised up leaders within Israel and defeated the Syrians. Israel lived in peace for awhile, but as the people continued to worship the false goddess Asherah at Samaria, the Lord reduced Jehoahaz's army to 50 mounted troops, 10 chariots, and 10,000 infantry. The Syrians had destroyed the others.
When Jehoahaz died, his son Joash became king. The story of Jehoahaz is found in 2 Kings 13:1-10. The name Jehoahaz means "God has held firmly." There is a jasper seal in the Israel Museum, inscribed "Belonging to Jehoahaz son of the King."