The people of the land took Jehoahaz the son of Josiah and made him king in his father’s place in Jerusalem.
The destruction of Judah and Jerusalem is here coming on by degrees. God so ordered it to show that he has no pleasure in the ruin of sinners, but had rather they would turn and live, and therefore gives them both time and inducement to repent and waits to be gracious. The history of these reigns was more largely recorded in the last three chapters of the second of Kings.
Commenting on 2 Chronicles 36:1-10
Then the people of the land took Jehoahaz the son of Josiah,.... Of whose reign, and of the three following, Jehoiakim, Jehoiachin, and Zedekiah, and the account of them, from hence to the end of Ch2 36:13, what needs explanation or reconciliation; see Gill on Kg2 23:31, Kg2 23:32, Kg2 23:33, Kg2 23:34, Kg2 23:35, Kg2 23:36, Kg2 23:37, Kg2 24:5, Kg2 24:6, Kg2 24:8...
Took Jehoahaz - It seems that after Necho had discomfited Josiah, he proceeded immediately against Charchemish, and in the interim, Josiah dying of his wounds, the people made his son king.