Neriglissar died

Neriglissar was a simmagir, a governor of one of the eastern provinces, and had been present during several of Nebuchadnezzar's campaigns. Importantly, Neriglissar was also married to one of Nebuchadnezzar's daughters and he was as such linked to the royal family. Possibly due to old age, Neriglissar's reign would also be short with some of the few recorded activities being the restoration of some monuments in Babylon and a campaign in Cilicia. Neriglissar died in 556 BC. Neriglissar was succeeded by his underage son, Labashi-Marduk (also the grandson of Nebuchadnezzar II through his mother). Labashi-Marduk's reign was even briefer, being assassinated in the same year after reigning for just nine months.