Prepare a place to slaughter his sons for the sins of their forefathers; they are not to rise to inherit the land and cover the earth with their cities. "I will rise up against them," declares the LORD Almighty. "I will cut off from Babylon her name and survivors, her offspring and descendants," declares the LORD.
Jeremiah 39:13 Nergal-sharezar, son-in-law of Nebuchadnezar released Jeremiah from prison at the taking of Jerusalem.
Evil-merodach, son of Nebuchadnezar, succeeded Nebuchanezar and released Jehoiachin from prison. Jeremiah 52:31 He reigns 2 years, 562 - 560.
Nergal-sharezar, married to Nitocris, daughter of Nebuchadnezar, assassinates Evil-merodach. He reigns 3 years, 559 - 556.
Nergal-sharezar is succeeded by his son, a mere boy, who is murdered by a conspiracy of nobles (instigated by Adad-guppi according to her steele) after only 9 months, and there being no other heirs of Nebuchadnezar (others being previously murdered), Nabonidus her son, who marries Nitocris, widow of Nergal-sharezar and daughter of Nebuchadnezar, becomes king in the vacuum.
Nabonidus reigns 17 years, 555 - 538, but is not much interested in Kinging, and is often absent for long periods (7 years on one occasion) on archealogical digs - his true passion. He leaves his son Belshazzar, Nebuchadnezar's grandson by Nitocris, in charge in Babylon during his absence.
Those wishing to discredit the book of Daniel often claim that Daniel confused Nebuchadnezar with Nabonidus - since boths accounts refer to a period of 7 years and end with the king glorifying the God of Israel. However, Daniel describes 7 years of madness - with no human thought, not an ulcer with idolatry common for the time.