One of Babylon's Nebuchadnezzar's officials.
Jer 39:3Then all the officials of the king of Babylon came in and sat in the Middle Gate: Nergal-Sharezer, Samgar-Nebo, Sarsechim the Rabsaris, Nergal-Sharezer the Rabmag, and all the rest of the officials of the king of Babylon.
Jer 39:13So Nebuzaradan the captain of the guard, Nebushazban the Rabsaris, Nergal-Sharezer the Rabmag, and all the chief officers of the king of Babylon