Jeremiah 39:3

3Then all the officials of the king of Babylon came in and sat in the Middle Gate [establishing both military control of the city and their authority to judge the captives]: Nergal-sar-ezer, Samgar-nebu, Sar-sekim the Rab-saris (chief of the eunuchs), and 39:3 Nergal-sar-ezer the Rab-mag, the son-in-law of Nebuchadnezzar, ascended to the Babylonian throne in 560 b.c. after causing the death of Nebuchadnezzar’s son, Evil-merodach. Nergal-sar-ezer then ruled the Babylonian Empire until 556 b.c.Nergal-sar-ezer the Rab-mag (chief of the magicians), with all the rest of the officials of the king of Babylon.