>>40893155
https://handwiki.org/wiki/Religion:Apaliunas
https://www.academia.edu/105697381/Nergal_the_god_of_death_Emerges_from_the_Abyss_and_the_Mistaken_Correlation_to_Remphan_and_the_Star_of_David
https://www.academia.edu/50834604/Ninurta_Nimrod_Son_of_Enlil_Satan_the_First_Post_Flood_Hybrid

I don't know how he fell, but some believe there is a connection with Susanoo no Mikoto(Baal), the banished god.