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. The name of his mother [was] Hamutal daughter of Jeremiah from Libnah.
Jeremiah 27:1
In the beginning of the reign of Jehoiakim, the son of Josiah, the king of Judah, this word came to Jeremiah from Yahweh, {saying}--
Jeremiah 28:1
And it was in that [same] year, at the beginning of the reign of Zedekiah, the king of Judah, in the fourth year, in the fifth month, that Hananiah, the son of Azzur, the prophet who [was] from Gibeon, said to me in the house of Yahweh before the eyes of the priests and all the people, {saying},
Jeremiah 52:1-3
Zedekiah [was] {twenty-one years old} at his beginning to reign, and he reigned eleven years in Jerusalem. And the name of his mother [was] Hamutal, the daughter of Jeremiah of Libnah.