Ithobaal III (Latin Ithobalus, Hebrew Ethbaal) was recorded by Josephus as the king on the list of kings of Tyre reigning 591/0–573/2 BCE at the time of the first fall of Jerusalem, and therefore the subject of Ezekiel's cherub in Eden.
[1] During his time, Josephus also wrote that Nebuchadnezzar II besieged Tyre for 13 years (Siege of Tyre (586–573 BC)), which probably covered 585 to 573 BC.
[3] There are even those who proposed an earlier date - around 603-590 - citing that the Babylonians would have attacked it first before launching a campaign against Egypt.
[2] Ithobaal himself survived the siege with the prophet acknowledging that "King Nebuchadnezzar of Babylon made his army labor hard against Tyre... yet neither he nor his army got anything".
[4] This article about Phoenicia, its colonies and people is a stub.