2 Kings 23:31

“Jehoahaz was twenty and three years old when he began to reign; and he reigned three months in Jerusalem. And his mother...”

2 Kings 24:18

“Zedekiah was twenty and one years old when he began to reign, and he reigned eleven years in Jerusalem. And his mother’s...”

Jeremiah 52:1

“Zedekiah was one and twenty years old when he began to reign, and he reigned eleven years in Jerusalem. And his mother’s...”