Sennacherib was the second king of the Sargonid Dynasty of Assyria, who ruled from 705 B.C. to 681 B.C. His name appears in the ‘Old Testament’ of the ‘Bible.’ He is primarily remembered for his military campaigns in Babylon and Jerusalem. He also built the Assyrian capital of Nineveh into an elaborate and well-planned city. He built canals to bring waters from the hills to Nineveh. He was also the brain behind the "palace without a rival,” a magnificent building that had a garden which is said to be the legendary “Hanging Gardens of Babylon.” Sennacherib was killed under mysterious circumstances. It is assumed by some scholars that the killer might have been his second-eldest son, Arda-Mulišši. Sennacherib was succeeded by Esarhaddon, his youngest son.