"Zedekiah[a] (/ˌzɛdɪˈkaɪə/) also known as Tzidkiyahu originally called Mattanyahu or Mattaniah, was the twentieth and last king of Judah before the destruction of the kingdom by King Nebuchadnezzar II of Babylon. Zedekiah had been installed as king of Judah by Nebuchadnezzar II, king of Babylon, after a siege of Jerusalem in 597 BC, to succeed his nephew, Jehoiachin, who was overthrown as king after a reign of only three months and ten days.
William F. Albright dates the start of Zedekiah´s reign to 598 BC, while E. R. Thiele gives the start in 597 BC. On that reckoning, Zedekiah was born in c. 617 BC or 618 BC, being twenty-one on becoming king. Zedekiah´s reign ended with the siege and fall of Jerusalem to Nebuchadnezzar II, which has been dated to 587 or 586 BC." - (en.wikipedia.org 04.10.2020)