SARSECHIM seems to be the name of a Babylonian official (Jer 39:3), but the versions
And all the princes of the king of Babylon came in, and sat in the middle gate, [to wit], Nergal-sharezer, Samgar-nebo, Sarsechim, Rab-saris, Nergal-sharezer, Rab-mag, with all the rest of the princes of the king of Babylon.