The last part of his name is unknown, as the principal sources of information, the King List A[i 1] and the Synchronistic King List[i 2] are both damaged at this place in the sequence, hence the “x”.

The reading of “zer” in his name by Poebel is almost as uncertain, as the character may be MU which would correspond to šuma or similar.

For subsequent kings, the "prophecies" offer poor correlation with their reigns and known events.

In this scheme, Marduk-zer-X is represented by King VI, whose text is very broken up but the rivers are said to have filled with silt.

[4] This reconstruction depends on the identification of Adad-apla-iddina as a usurper, a position undermined by the discovery of the Walker Chronicle.