The Death of Sennacherib: Esarhaddon Becomes King of Assyria

The end for Sennacherib would come at the hands of his sons.  Isaiah writes in verse 37:38:

While he [Sennacherib] was worshiping in the temple of his god Nisroch, he was struck down with the sword by his sons Adrammelech and Sarezer. They fled to the land of Ararat, and his son Esarhaddon succeeded him as king.

This is confirmed in the Babylonian Chronicle, which reads:

“On the twentieth day of the month Tebet, Sennacherib, king of Assyria, was killed by his son in a rebellion. On the twenty-eighth eighteenth day of the month Adar Esarhaddon, his son, ascended the throne in Assyria.”