This is a good, brief overview of the career of King Sennacherib, with attention to his place in biblical tradition.
For PaleoJudaica posts on his campaign in Judea and his siege of Jerusalem, see here and here (cf. here) and links.
For more on the "seal" (inscribed bulla) of King Hezekiah, see here and follow the links back from here.
For Nebuchadnezzar's Hanging Gardens of Babylon, which may actually have been Sennacherib's at Nineveh, see here and links. If this is correct, Nebuchadnezzar acquired them in the Greek Fantasy Babylon tradition.
For more on "The Revolt of Babylon," put down by Sennacherib, see here. The Aramaic story with this title is found in Papyrus Amherst 63 (filed under Aramaic Fantasy Babylon).
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