Who is Nabonidus?

Question from moody radio listener on Mar 11, 2016? Nabonidus? Belshazzar? Nebuchadnezzar? Nabonidus, where does he fit in as far as heritage as is concerned, grandfather? father? I am studying this a lot and I am just baffled by it. Answer from Dr Michael Rydelnik: There is nothing to be that baffled about, Nabonidus is the son of Nebuchadnezzar and Belshazzar, who is mentioned in Daniel 5, is his son, so some people say that the king should have been Nabonidus but in scripture, it says to be Belshazzar, what we know now is that Belshazzar is co-regent with Nabonidus and that's why in Daniel 5, he says anyone who can interpret the handwriting on the wall will receive a third of my kingdom, could not give half because he had half and basically was co-regent with his father, Nabonidus. So, even though Nabonidus is not mentioned, but Belshazzar, his co-regent was and then Daniel interprets the hand writing on the wall. So, does that make sense to you? Moody Radio listener: It becomes very confusing, Amel-Marduk is Nebuchadnezzar's son and then Nabonidus, I can't figure where he's at? Dr Michael Rydelnik: He is the king who came third after Nebuchadnezzar.