Nabu-Shuma-Ukin Ii in Wikipedia
Nabu-Suma-Ukin II. was the King of Babylon briefly in 732 BC. He ascended the throne after the assassination of Nabu-nadin-zeri, but was deposed after a month of his reign by Nabu-mukin-zeri.  Albert Kirk Grayson in his book "Assyrian and Babylonian" reports that this particular king is omitted from the Ptolemaic canon.