Jeremiah 52:1

Zedekiah (Mattaniah, 2 Kings 24:17) was the last king of the Davidic dynasty to rule over Judah from Jerusalem. He was 21 years old when he began reigning in 597 B.C. Nebuchadnezzar selected him to rule after Zedekiah’s nephew Jehoiachin proved unfaithful (2 Kings 24:17). Zedekiah ruled as Nebuchadnezzar’s vassal for 11 years, until the destruction of Jerusalem in 586 B.C. His mother, the queen mother, was Hamutal, the daughter of a certain Jeremiah of Libnah. "Queen mothers" exercised considerable authority, and enjoyed great prestige in ancient Near Eastern countries, which accounts for Hamutal’s mention here (cf. Jeremiah 13:18).