“Then I summoned Beelzeboul to appear before me again. When he was seated, I thought it appropriate to ask him, ‘Why are you alone Prince of the Demons?’ He replied, ‘Because I am the only one left of the heavenly angels (who fell). I was the highest-ranking angel in heaven, the one called Beelzeboul. There is also accompanied me another ungodly (angel) whom God cut off and now, imprisoned here, he holds in his power the race of those bound by me in Tartarus. He is being nurtured in the Red Sea; when he is ready, he will come in triumph.”
“I said to him, ‘What are your activities?’ He replied, ‘I bring destruction by means of tyrants; I cause the demons to be worshiped alongside men; and I arouse desire in holy men and select priests. I bring about jealousies and murders in a country, and I instigate wars.” – Testament of Solomon 6:1-4
Coincidentally, Nineveh is modern-day Mosul, Iraq.