And it came to pass - Nebuchadnezzar was just now dead; and Evil-merodach, his son, succeeded to the kingdom in the thirty-seventh year of the captivity of Jehoiachin: and on the seven and twentieth day [Jeremiah says five and twentieth] of the twelfth month of that year, (Tuesday, April 15, A.M. 3442), he brought the long captivated Jewish king out of prison; treated him kindly; and ever after, during his life, reckoned him among the king's friends. This is particularly related in the four last verses of the book of Jeremiah.
The captivity of Jehoiachin commenced in the year 597 B.C. - the eighth year of Nebuchadnezzar. It terminated 561 B.C. - the first year of Evil-merodach, the son and successor of Nebuchadnezzar. He reigned only two years, being murdered by his brother-in-law, Neriglissar, or Nergal-shar-ezer. He is said to have provoked his fate by lawless government and intemperance.