2 Kings 22:1
Josiah was eight years old when he began to reign, and he reigned thirty and one years in Jerusalem. And his mother's name was Jedidah, the daughter of Adaiah of Boscath.
Nave's Topical Index—AKJV

2 Kings 23:1
And the king sent, and they gathered to him all the elders of Judah and of Jerusalem.
Nave's Topical Index—AKJV

2 Chronicles 34:1
Josiah was eight years old when he began to reign, and he reigned in Jerusalem one and thirty years.
Nave's Topical Index—AKJV

2 Chronicles 35:1
Moreover Josiah kept a passover to the LORD in Jerusalem: and they killed the passover on the fourteenth day of the first month.
Nave's Topical Index—AKJV