Baalzebul Wall Mask

This is a wall mask depicting the Arch-devil known in Dungeons & Dragons as Baalzebul, Lord of the (F)lies, and elsewhere as Beelzebub.  Like most devil figures in monotheistic religions, Baalzebul/Beelzebub is a pagan deity (in this case Philistine) converted into an evil spirit.

The original illustration from the AD&D Monster Manual: