In demonology, Beleth, also spelled Bilet, Bileth, Byleth, or Bilith, is a king of Hell who has eighty-five legions of demons under his command. He rides a pale horse, and a variety of music is heard before him, according to most authors on demonology and the most known grimoires.
According to Pseudomonarchia Daemonum, Noah's son Ham was the first in invoking him after the flood, and wrote a book on mathematics with his help.
When appearing, he looks fierce in order to frighten the conjurer or to see if he is courageous. The conjurer must be brave, and holding a hazel wand in his hand must draw a triangle by striking towards the south, east, and upwards, then commanding Beleth into it by means of some conjurations.
The Dictionnaire Infernal states that to summon Beleth, the person should hold a silver ring on the middle finger of the left hand against his face, to pay respect to Beleth's rank as king.
In New Orleans Beleth seems to have had a hand in shaping and corrupting the city since the late 19th century. The dancing cat spying upon the girls at the Ursine Convent and having some kind of bond with both the Mother Superior and Head Priest.
It was Beleth's harbingers, the Dervish Poppets, and their attack on New Orleans in 2019 that the Unmoored became a coterie.
After the Fall, Beleth holds dominion over Orleans Parish. He has played host to Caine, his captured seer Madison Black, and holds a prized broken doll as his Captive Queen in mockery and grave insult to the Morningstar.