2 Chronicles 36:11
Zedekiah was twenty-one years old when he began to reign, and he reigned eleven years in Jerusalem.
2 Kings 24:18-20
Zedekiah was twenty-one years old when he became king, and he reigned eleven years in Jerusalem. His mother's name was Hamutal the daughter of Jeremiah of Libnah.
Jeremiah 27:1
In the beginning of the reign of Zedekiah the son of Josiah, king of Judah, this word came to Jeremiah from the LORD.
Jeremiah 28:1
In that same year, at the beginning of the reign of Zedekiah king of Judah, in the fifth month of the fourth year, Hananiah the son of Azzur, the prophet from Gibeon, spoke to me in the house of the LORD, in the presence of the priests and all the people, saying,
Jeremiah 52:1-3
Zedekiah was twenty-one years old when he became king; and he reigned eleven years in Jerusalem. His mother's name was Hamutal the daughter of Jeremiah of Libnah.